remove collision url api

Author: rustagir

source/api.txt renamed to source/api-docs.txt

@@ -13,3 +13,6 @@ API Documentation
 
     {+odm+} <{+api+}>
     {+language+} Driver <{+ruby-api+}>
+
+- `{+odm+} API Documentation <{+api+}>`__
+- `{+language+} Driver API Documentation <{+ruby-api+}>`__

source/index.txt

@@ -15,7 +15,7 @@
    Model Your Data </data-modeling>
    Secure Your Data </security>
    Integrations & Tools </integrations-tools>
-   API Documentation </api>
+   API Documentation </api-docs>
    Compatibility </compatibility>
    What's New </whats-new>
    Issues & Help </issues-and-help>