Check and optimize README links w/ awesome_bot
Check and optimize README links w/ awesome_bot

 Also tweak some formatting, i.e., footer icons

sourceryinstitute/opencoarrays,sourceryinstitute/opencoarrays,zbeekman/opencoarrays,sourceryinstitute/opencoarrays,zbeekman/opencoarrays,zbeekman/opencoarrays