Edit: Added info/tips on some errors

.config/vimwiki/README.md

@@ -3,4 +3,6 @@
 In order to compile the filter you must type: `ghc -static --make filter.hs`. Keep in mind that you don't need to compile anything, because you can just make the `filter.hs` file executable via `chmod +x filter.hs` and then run it via: 
 `pandoc -f markdown -t html --filter ./filter.hs -o index.html index.md`.
 
-To do that remember also to add the shebang: `#!/usr/bin/env runhaskell`
+To do that remember also to add the shebang: `#!/usr/bin/env runhaskell` (You need to have runhaskell installed, in arch-linux is provided with the ghc package)
+
+If you are encountering problems try to run the command above instead of using the vimwiki wrapper