update name following convention, and internationalizing doc link

Author: jodebrui

samples/features/ssms-templates/readme.MD samples/features/ssms-templates/README.mdsamples/features/ssms-templates/readme.MD renamed to samples/features/ssms-templates/README.md

@@ -46,4 +46,4 @@ Download the templates to a folder of your choice and open them from the File/Op
 ## Related Links
 
 For more information, see these articles:
-https://docs.microsoft.com/en-us/sql/ssms/tutorials/templates-ssms
+https://docs.microsoft.com/sql/ssms/tutorials/templates-ssms