Replace Webboard link to MGU with Wiki
Replace Webboard link to MGU with Wiki

The Webboard no longer has the most recent version of MGU, so point
to the Wiki instead (which has been updated).

smrealms/smr,hemberger/smr,hemberger/smr,smrealms/smr,hemberger/smr,smrealms/smr,hemberger/smr