Merge pull request #79 from pspdev/remove-unrelated-documentation-links

Remove additional documentation page

Author: diamant3

documentation.md

@@ -26,8 +26,6 @@ Your code is not working? [Go here](debugging.html).
 {: .fs-5 }
 
 Want some simple tips and trick to improve your experience? [Go here](tips_tricks.html).
-
-Need some in-depth knowledge? [Go here](documentation.html).
 {: .fs-5 }
 
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