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diff --git a/docker/appendix.md b/docker/appendix.md
@@ -68,4 +68,99 @@ At one point I might create similar pages for some other countries as well.
 
 Legacy system
 
+## Docker Resources
+{id: docker-resource}
+
+
+* [Docker Documentation](https://docs.docker.com/)
+* [Docker on Code-Maven](https://code-maven.com/docker)
+* [Docker Tutorial for Beginners](https://www.youtube.com/watch?v=VlSW-tztsvM)
+* [Docker Tutorial For Beginners](https://www.youtube.com/watch?v=sRIxHHZFwBA)
+* [Docker Curriculum](https://docker-curriculum.com/)
+
+## Docker Whalesay
+{id: docker-hub-whalesay}
+
+Go to [Docker Hub](https://hub.docker.com/) search for *whalesay* and note among the many hits there is one called
+[docker/whalesay](https://hub.docker.com/r/docker/whalesay/). We'll use that one.
+
+```
+$ docker run docker/whalesay cowsay hello world
+
+Unable to find image 'docker/whalesay:latest' locally
+latest: Pulling from docker/whalesay
+e190868d63f8: Pull complete
+909cd34c6fd7: Pull complete
+0b9bfabab7c1: Pull complete
+a3ed95caeb02: Pull complete
+00bf65475aba: Pull complete
+c57b6bcc83e3: Pull complete
+8978f6879e2f: Pull complete
+8eed3712d2cf: Pull complete
+Digest: sha256:178598e51a26abbc958b8a2e48825c90bc22e641de3d31e18aaf55f3258ba93b
+Status: Downloaded newer image for docker/whalesay:latest
+ _____________
+&lt; hello world >
+ -------------
+    \
+     \
+      \
+                    ##        .
+              ## ## ##       ==
+           ## ## ## ##      ===
+       /""""""""""""""""___/ ===
+  ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ /  ===- ~~~
+       \______ o          __/
+        \    \        __/
+          \____\______/
+```
+
+## Docker ps after whalesay
+{id: docker-ps-whalesay}
+
+```
+$ docker ps -as
+
+CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                      PORTS               NAMES
+59c99df0177a        docker/whalesay     "cowsay hello world"   36 minutes ago      Exited (0) 23 minutes ago                       loving_wescoff      0 B (virtual 247 MB)
+f6239f10a6ad        hello-world         "/hello"               About an hour ago   Exited (0) 58 minutes ago                       lucid_snyder        0 B (virtual 1.84 kB)
+```
+
+```
+$ docker images
+
+REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
+hello-world         latest              48b5124b2768        6 weeks ago         1.84 kB
+docker/whalesay     latest              6b362a9f73eb        21 months ago       247 MB
+```
+
+## Docker whale (create Docker image)
+{id: docker-whale}
+
+Create *Dockerfile* with the following content:
+
+![](examples/first/Dockerfile)
+
+```
+$ docker build -t docker-whale .
+...
+```
+
+```
+$ docker images
+REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
+docker-whale        latest              d5cf6bf32c0f        24 seconds ago      277 MB
+hello-world         latest              48b5124b2768        6 weeks ago         1.84 kB
+docker/whalesay     latest              6b362a9f73eb        21 months ago       247 MB
+```
+
+The command `docker ps -a` shows nothing new.
+
+## Run Docker whale
+{id: run-docker-whale}
+
+```
+$ docker run docker-whale
+```
+
 
diff --git a/docker/commands.md b/docker/commands.md
@@ -80,117 +80,6 @@ docker exec -it 0ca23b8a9802 bash
 docker kill ID    if it does not want to stop
 ```
 
-## Docker Resources
-{id: docker-resource}
-
-
-* [Docker Documentation](https://docs.docker.com/)
-* [Docker on Code-Maven](https://code-maven.com/docker)
-* [Docker Tutorial for Beginners](https://www.youtube.com/watch?v=VlSW-tztsvM)
-* [Docker Tutorial For Beginners](https://www.youtube.com/watch?v=sRIxHHZFwBA)
-* [Docker Curriculum](https://docker-curriculum.com/)
-
-
-## Docker create image by save
-{id: docker-create-image-by-save}
-
-```
-docker run -it debian
-apt-get update
-apt-get install htop
-exit
-
-docker commit 3db0a970e422 USERNAME/debian:1.00
-docker run --rm -it USERNAME/debian:1.00
-```
-
-Check the history!
-
-## Docker Whalesay
-{id: docker-hub-whalesay}
-
-Go to [Docker Hub](https://hub.docker.com/) search for *whalesay* and note among the many hits there is one called
-[docker/whalesay](https://hub.docker.com/r/docker/whalesay/). We'll use that one.
-
-```
-$ docker run docker/whalesay cowsay hello world
-
-Unable to find image 'docker/whalesay:latest' locally
-latest: Pulling from docker/whalesay
-e190868d63f8: Pull complete
-909cd34c6fd7: Pull complete
-0b9bfabab7c1: Pull complete
-a3ed95caeb02: Pull complete
-00bf65475aba: Pull complete
-c57b6bcc83e3: Pull complete
-8978f6879e2f: Pull complete
-8eed3712d2cf: Pull complete
-Digest: sha256:178598e51a26abbc958b8a2e48825c90bc22e641de3d31e18aaf55f3258ba93b
-Status: Downloaded newer image for docker/whalesay:latest
- _____________
-&lt; hello world >
- -------------
-    \
-     \
-      \
-                    ##        .
-              ## ## ##       ==
-           ## ## ## ##      ===
-       /""""""""""""""""___/ ===
-  ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ /  ===- ~~~
-       \______ o          __/
-        \    \        __/
-          \____\______/
-```
-
-## Docker ps after whalesay
-{id: docker-ps-whalesay}
-
-```
-$ docker ps -as
-
-CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                      PORTS               NAMES
-59c99df0177a        docker/whalesay     "cowsay hello world"   36 minutes ago      Exited (0) 23 minutes ago                       loving_wescoff      0 B (virtual 247 MB)
-f6239f10a6ad        hello-world         "/hello"               About an hour ago   Exited (0) 58 minutes ago                       lucid_snyder        0 B (virtual 1.84 kB)
-```
-
-```
-$ docker images
-
-REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
-hello-world         latest              48b5124b2768        6 weeks ago         1.84 kB
-docker/whalesay     latest              6b362a9f73eb        21 months ago       247 MB
-```
-
-## Docker whale (create Docker image)
-{id: docker-whale}
-
-Create *Dockerfile* with the following content:
-
-![](examples/first/Dockerfile)
-
-```
-$ docker build -t docker-whale .
-...
-```
-
-```
-$ docker images
-REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
-docker-whale        latest              d5cf6bf32c0f        24 seconds ago      277 MB
-hello-world         latest              48b5124b2768        6 weeks ago         1.84 kB
-docker/whalesay     latest              6b362a9f73eb        21 months ago       247 MB
-```
-
-The command `docker ps -a` shows nothing new.
-
-## Run Docker whale
-{id: run-docker-whale}
-
-```
-$ docker run docker-whale
-```
-
 ## Dockerfile
 {id: docker-dockerfile}
 
@@ -302,21 +191,6 @@ docker logs CONTAINER_ID
 
 * [logs](https://docs.docker.com/engine/reference/commandline/logs/)
 
-## Docker networking
-{id: docker-networking}
-
-```
-docker network list
-NETWORK ID          NAME                DRIVER              SCOPE
-234aa213ed9a        bridge              bridge              local
-63a0fd629d21        host                host                local
-37a165457dad        none                null                local
-```
-
-```
-docker network create abc      creates a bridge called abc
-```
-
 ## Ignore files and directories
 {id: ignore-files-and-directories}
 {i: .dockerignore}

diff --git a/docker/create-image.md b/docker/create-image.md
@@ -77,6 +77,22 @@ There are two ways to create a Docker image on your computer:
 * Run a container, install stuff, stop it, commit it.
 * Create Dockerfile, run docker build.
 
+## Docker create image by save
+{id: docker-create-image-by-save}
+
+```
+docker run -it debian
+apt-get update
+apt-get install htop
+exit
+
+docker commit 3db0a970e422 USERNAME/debian:1.00
+docker run --rm -it USERNAME/debian:1.00
+```
+
+Check the history!
+
+
 ## Create image from container
 {id: create-image-from-container}
 {i: commit}

diff --git a/docker/docker.json b/docker/docker.json
@@ -12,6 +12,7 @@
         "python.md",
         "perl.md",
         "compose.md",
+        "networking.md",
         "appendix.md"
     ]
 }
diff --git a/docker/networking.md b/docker/networking.md
@@ -0,0 +1,20 @@
+# Docker networking
+{id: docker-networking}
+
+
+## Docker network list
+{id: docker-network-list}
+
+```
+docker network list
+NETWORK ID          NAME                DRIVER              SCOPE
+234aa213ed9a        bridge              bridge              local
+63a0fd629d21        host                host                local
+37a165457dad        none                null                local
+```
+
+```
+docker network create abc      creates a bridge called abc
+```
+
+