-By default, the content of the index is identical to that of the
-HEAD. The command "git diff --cached" shows the difference between
-HEAD and the index, so you should no output from that command.
-
-////////////////////////////////////////////////
-
-This is talking about not "by default", but "when you start
-out". The last sentence does not parse for me...
-
-////////////////////////////////////////////////
-
+At the beginning, the content of the index will be identical to
+that of the HEAD. The command "git diff --cached", which shows
+the difference between the HEAD and the index, should therefore
+produce no output at that point.