plugins/redirects: strip index.html suffix from redirect path if present

Signed-off-by: Ruby Iris Juric <[email protected]>

Author: Sorixelle

plugins/generator_redirects.rb

@@ -66,7 +66,7 @@ def initialize(site, base, dir, name, redirect_to)
 
       process(@name)
       read_yaml(File.join(base, '_layouts', 'utils'), 'redirect_permanent.html')
-      data['redirect_to'] = redirect_to
+      data['redirect_to'] = redirect_to.delete_suffix('index.html')
     end
   end
 end