Fix quotes in "Rewriting history" section

This is the only place in the book where this type of quotes were used.
Also, grave in the Noto Serif font included with EPUB version of book
is combining, so this two words were rendered incorrectly.

Author: matshch

book/07-git-tools/sections/rewriting-history.asc

@@ -124,7 +124,7 @@ It will start at the commit you specify on the command line (`HEAD~3`) and repla
 It lists the oldest at the top, rather than the newest, because that's the first one it will replay.
 
 You need to edit the script so that it stops at the commit you want to edit.
-To do so, change the word `pick' to the word `edit' for each of the commits you want the script to stop after.
+To do so, change the word "`pick`" to the word "`edit`" for each of the commits you want the script to stop after.
 For example, to modify only the third commit message, you change the file to look like this:
 
 [source,console]