Fix a few typos in DDT documentation (#74)

* Fix typo in uenv-linaro-forge.md
* Fix ddt version in uenv-linaro-forge.md

docs/uenv-linaro-forge.md

@@ -23,14 +23,14 @@ The linaro tools are configured to be mounted in the `/user-tools` path so that
     When using alongside another uenv, start a uenv session with both uenv with `linaro-forge` after the main uenv, to mount the images at the respective `/user-environment` and `/user-tools` locations:
 
     ```bash
-    uenv start prgenv-gnu/24.2:v3 linaro-forge/32.1.2
+    uenv start prgenv-gnu/24.2:v3 linaro-forge/23.1.2
 
     # test that everything has been mounted correctly
     # (will give warnings if there are problems)
     uenv status
 
     uenv view prgenv-gnu:default
-    source /user-tools/acvitave
+    source /user-tools/activate
 
     # check that ddt is in the path
     ddt --version
@@ -43,9 +43,9 @@ The linaro tools are configured to be mounted in the `/user-tools` path so that
     When using the uenv with no other environment mounted, you will need to explicitly set the `/user-tools` mount point:
 
     ```bash
-    uenv start linaro-forge/32.1.2:/user-tools
+    uenv start linaro-forge/23.1.2:/user-tools
 
-    source /user-tools/acvitave
+    source /user-tools/activate
 
     # check that ddt is in the path
     ddt --version