Make sure each FAQ item has an index entry.

FAQ

@@ -25,6 +25,7 @@ OpenSSL  -  Frequently Asked Questions
 * Why can't I make an SSL connection using a DSA certificate?
 * How can I remove the passphrase on a private key?
 * Why can't I use OpenSSL certificates with SSL client authentication?
+* Why does my browser give a warning about a mismatched hostname?
 
 [BUILD] Questions about building and testing OpenSSL