editing according to the review

doc/guidelines/development/docker/index.rst

@@ -122,14 +122,21 @@ while repo is under as you declared in "--volume"::
 Open and edit the scripts in Visual Studio Code
 =================================================
 
-Now your environment is ready. You can open and edit the script from clicking the file on the left pannel. You can run the files under the /home/saluser/develop/ in terminal (bottom red box in the following image). For example, if you run test code, you can quickly check if your code will pass or fail under the environment.
+Now your environment is ready. 
+You can open and edit the script from clicking the file on the left pannel. 
+You can run the files under the /home/saluser/develop/ in terminal (bottom red box in the following image). 
+For example, if you run test code, you can quickly check if your code will pass or fail under the environment.
 
-.. image:: ../../../images/open_from_repo.png
+.. figure:: ../../../images/open_from_repo.png
   :width: 700px
 
+  How to open the files, or run the script (ex. test code) in VSCode
+
+
 If you want to work with github branch in your container, you can clone the git repository as well, clicking *Clone Git Repository* and put the URL of the git repository you want to clone.
 
 .. image:: ../../../images/branch_git_repo.png
   :width: 700px
 
+
 Remember, once you close and delete the container, changes made in the container are not saved nor updating original image files. Therefore, changes should be copied and saved in local repo (--volume).