repair external and internal links

83b99667 · Lukáš Krupčík · a90b0444 · 83b99667
Commit 83b99667 authored 8 years ago by Lukáš Krupčík
--- a/docs.it4i/index.md
+++ b/docs.it4i/index.md
-# Extensions {: .doctitle}
-PyMdown Extensions.
-
---
-
 !!! Caution "Reminder"
-    Please read the [Usage Notes](usage_notes.md) for information on extension compatibility and general notes to be aware of when using these extensions.
+    Please read the [Usage Notes](usage_notes/) for information on extension compatibility and general notes to be aware of when using these extensions.

 Documentation
 =============