fixed link to LICENSE

Author: rajrsingh

docs/_config.yml

@@ -42,7 +42,7 @@ aux_links:
   "GitHub Repo":
     "https://github.com/intersystems-community/vscode-objectscript"
 
-footer_content: "Copyright &copy; 2020 InterSystems Corp. Distributed under an <a href=\"https://github.com/intersystems-community/vscode-objectscript/tree/master/LICENSE.txt\">MIT license.</a>"
+footer_content: "Copyright &copy; 2020 InterSystems Corp. Distributed under an <a href=\"https://github.com/intersystems-community/vscode-objectscript/tree/master/LICENSE\">MIT license.</a>"
 
 ga_tracking: GTM-PKG7GB