Possible misspelling in Chapter 3

[hugoender]

First page of Chapter 3 under the Branches in a Nutshell section 5th paragraph:

"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."

Not sure if you really meant "tree" or "three".

[YueLinHo]

Report it to correct place, please close it. 😃

[sxlijin]

This issue has been re-opened in the appropriate repository and should be closed.