fixed a typo

Author: sivaraam

book/04-git-server/sections/protocols.asc

@@ -75,7 +75,7 @@ We'll cover the newer ``smart'' HTTP protocol first.
 ===== Smart HTTP
 
 (((protocols, smart HTTP)))
-The ``smart'' HTTP protocol operates very similarly to the SSH or Git protocols but runs over standard HTTP/S ports and can use various HTTP authentication mechanisms, meaning it's often easier on the user than something like SSH, since you can use things like username/password basic authentication rather than having to set up SSH keys.
+The ``smart'' HTTP protocol operates very similarly to the SSH or Git protocols but runs over standard HTTP/S ports and can use various HTTP authentication mechanisms, meaning it's often easier on the user than something like SSH, since you can use things like username/password based authentication rather than having to set up SSH keys.
 
 It has probably become the most popular way to use Git now, since it can be set up to both serve anonymously like the `git://` protocol, and can also be pushed over with authentication and encryption like the SSH protocol.
 Instead of having to set up different URLs for these things, you can now use a single URL for both.