fix bad link in documentation index

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2204 44740490-163a-0410-bde0-09ae8108e29a

docs/index.txt

@@ -16,7 +16,7 @@ SimpleSAMLphp Documentation
   * [Use case: Setting up an IdP for Google Apps](simplesamlphp-googleapps)
   * [Identity Provider Advanced Topics](simplesamlphp-idp-more)
  * [Automated Metadata Management](simplesamlphp-automated_metadata)
- * [Maintenance and configuration](/simplesamlphp-maintenance) - covers session handling, php configuration etc.
+ * [Maintenance and configuration](simplesamlphp-maintenance) - covers session handling, php configuration etc.
  * [Authentication Processing Filters](simplesamlphp-authproc) - attribute filtering, attribute mapping, consent, group generation etc.
  * [Advanced features](simplesamlphp-advancedfeatures) - covers bridging protocols, attribute filtering, etc.
  * [SimpleSAMLphp Dictionaries and Translation](simplesamlphp-translation)