Typo

Author: Ryan Trauntvein

README.md

@@ -25,7 +25,7 @@ Please also have a quick look at the [FAQ](FAQ.md) before reporting bugs.
     - [Authentication options](#authentication-options)
     - [Search-engine options](#Search-engine-options)
       - [sqlalchemy](#sqlalchemy)
-    - [Mirroring Options](#mirroring-ptions)
+    - [Mirroring Options](#mirroring-options)
     - [Cache options](#cache-options)
     - [Storage options](#storage-options)
       - [storage file](#storage-file)