Updating the homepage "Other guides" link

[severinmenard]

It still leads to the old Gdocs, organized in Intermediate and Advanced mappers. New thematic organization is only accessible through the bottom left of the Beginners guide

[CloCkWeRX]

I'm not super clear on this - do you mean the lower left hand side menu on http://learnosm.org/en/beginner/ ? Or somewhere else?

[Nick-Tallguy]

Closing. Wiki has been tidied and I think this is resolved. See #527