Update rules/minecraft_discussion/rules.markdown

https://github.com/minecraftforum/rules/pull/78
Update rules/minecraft_discussion/rules.markdown

failed bold
Update rules/global/rules.markdown

https://github.com/minecraftforum/rules/pull/79
https://github.com/minecraftforum/rules/pull/80
https://github.com/minecraftforum/rules/pull/83
https://github.com/minecraftforum/rules/pull/86
Update rules/off_topic/rules.markdown

https://github.com/minecraftforum/rules/pull/85
Update rules/mapping_and_modding/rules.markdown

https://github.com/minecraftforum/rules/pull/81
https://github.com/minecraftforum/rules/pull/82
Merge pull request #87 from AE97/karge

Fixes for the failed PRs