Update android studio doc about formatting commits.

docs/android_studio.md

Index: docs/android_studio.md
diff --git a/docs/android_studio.md b/docs/android_studio.md
index 818287983f35a99e970cd11738aa8ea5f45c0f1d..bcbeadc70be47bda8f58676d91972c069930bc29 100644
--- a/docs/android_studio.md
+++ b/docs/android_studio.md
@@ -101,6 +101,12 @@ includes `R.java`).
     * Help -> Find Action -> "Show quick documentation on mouse move"
 * Turn on line numbers:
     * Help -> Find Action -> "Show line numbers"
+* Format changed files (Useful for changes made by running code inspection):
+    * Set up version control (May require project to be inside the src folder)
+        * Help -> Find Action -> "Version Control"

[estevenson, 2017/05/09 15:50:52]

After generating a new project, clicking "Version Control" does nothing for me
until I configure the VCS root (either by addressing the message in the event
log or settings -> version control). I can repro this consistently if I choose a
new output dir for my project - does this happen for you as well? May want to
note this if so.

[F, 2017/05/09 17:29:28]

Done. I've updated the instructions to use File->Settings->Version Control.

+    * Commit changes and reformat
+        * Help -> Find Action -> "Commit Changes"
+        * Check "Reformat code" & "Optimize imports" and commit
 
 ### Useful Shortcuts