Adds views layout docs to Side Bar Views section

Co-authored-by: Eric Amodio <eamodio@gmail.com>

README.md

@@ -241,6 +241,16 @@ Here are just some of the **features** that GitLens provides,
 
 ## Side Bar Views [#](#side-bar-views- 'Side Bar Views')
 
+GitLens adds many side bar views to provide additional rich functionality. The default layout (location) of these views can be quickly customized via the _GitLens: Set Views Layout_ (`gitlens.setViewsLayout`) command from the [_Command Palette_](https://code.visualstudio.com/docs/getstarted/userinterface#_command-palette).
+
+- _Source Control Layout_ — shows all the views together on the Source Control side bar
+- _GitLens Layout_ — shows all the views together on the GitLens side bar
+
+<p style="display:flex;justify-content:space-around">
+  <img src="images/docs/views-layout-scm.png" alt="Views Layout: Source Control" />
+  <img src="images/docs/views-layout-gitlens.png" alt="Views Layout: GitLens" />
+</p>
+
 ### Commits view [#](#commits-view- 'Commits view')
 
 <p align="center">