Merge pull request #638 from wget/patch-1

"in actuality" sounds too "frenchist" and uncommon in English

Author: ben

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

@@ -171,7 +171,7 @@ $ git log --oneline --decorate --graph --all
 * 98ca9 initial commit of my project
 ----
 
-Because a branch in Git is in actuality a simple file that contains the 40 character SHA-1 checksum of the commit it points to, branches are cheap to create and destroy.
+Because a branch in Git is actually a simple file that contains the 40 character SHA-1 checksum of the commit it points to, branches are cheap to create and destroy.
 Creating a new branch is as quick and simple as writing 41 bytes to a file (40 characters and a newline).
 
 This is in sharp contrast to the way most older VCS tools branch, which involves copying all of the project's files into a second directory.