Fix beginning typo from bash
Add fixes from @marcom's PR https://github.com/adambard/learnxinyminutes-docs/pull/765
Fix typos from amd.html PR https://github.com/adambard/learnxinyminutes-docs/pull/803
Add a couple missing parts to the markdown doc from @ukom PR https://github.com/adambard/learnxinyminutes-docs/pull/341
Merge pull request #809 from levibostian/little-fixes-after-merging

Little fixes after merging