Match text to text in image.

The .png file says "The initial commit of my project". This change makes the text match.

Author: nobozo

book/03-git-branching/sections/nutshell.asc

@@ -14,7 +14,7 @@ Staging the files checksums each one (the SHA-1 hash we mentioned in <<_getting_
 [source,console]
 ----
 $ git add README test.rb LICENSE
-$ git commit -m 'initial commit of my project'
+$ git commit -m 'The initial commit of my project'
 ----
 
 When you create the commit by running `git commit`, Git checksums each subdirectory (in this case, just the root project directory) and stores those tree objects in the Git repository.