Fixed TOC.

Author: dobooth

_data/toc/mftf.yml

@@ -9,7 +9,7 @@ pages:
     url: /mftf/docs/getting-started.html
     versionless: true
 
- - label: Action group reference
+  - label: Action group reference
     url: /mftf/docs/actiongroup-list.html
     versionless: true
 
@@ -154,6 +154,10 @@ pages:
         url: /mftf/docs/test/assertions.html
         versionless: true
 
+      - label: MFTF functional test reference
+        url: /mftf/docs/mftf-tests.html
+        versionless: true
+
   - label: Troubleshooting
     url: /mftf/docs/troubleshooting.html
     versionless: true 
@@ -172,4 +176,4 @@ pages:
 
   - label: Changelog
     url: https://github.com/magento/magento2-functional-testing-framework/blob/master/CHANGELOG.md
-    versionless: true
+    versionless: true