Update index.html

Fix minor typo

Author: Mouseion

index.html

@@ -182,7 +182,7 @@ <h2>log</h2>
             <code>git log --author=bob</code><br />
             To see a very compressed log where each commit is one line:<br />
             <code>git log --pretty=oneline</code><br />
-            Or mabe you want to see an ASCII art tree of all the branches, decorated with the names of tags and branches: <br />
+            Or maybe you want to see an ASCII art tree of all the branches, decorated with the names of tags and branches: <br />
             <code>git log --graph --oneline --decorate --all</code><br />
             See only which files have changed: <br />
             <code>git log --name-status</code><br />