markdown lint cleanup and formatting

stable-crust/fault/CO/Cheraw/features/Cheraw (SSCn).geojson

...-crust/fault/CO/Cheraw/features/Cheraw (SSCn, GR).geojson

stable-crust/fault/CO/Cheraw/features/Cheraw.geojson

stable-crust/fault/CO/Cheraw/features/README.md

stable-crust/fault/CO/Cheraw/features/notes.md

stable-crust/fault/MO/Commerce/README.md

stable-crust/fault/MO/Commerce/features/commerce.geojson

stable-crust/fault/OK/Meers/features/Meers (SSCn).geojson

stable-crust/fault/OK/Meers/features/Meers (USGS).geojson

stable-crust/fault/OK/Meers/features/README.md

stable-crust/fault/TN/Eastern Rift Margin (North)/README.md

...Margin (North)/features/eastern-rift-margin-north.geojson

stable-crust/fault/TN/Eastern Rift Margin (South)/README.md

...rn Rift Margin (South)/features/crittenden-county.geojson

...uth)/features/eastern-rift-margin-south-extension.geojson

...Margin (South)/features/eastern-rift-margin-south.geojson

...astern Rift Margin (South)/features/meeman-shelby.geojson

stable-crust/zone/AR/Crowleys Ridge (south)/README.md

...AR/Crowleys Ridge (south)/active/crowleys-ridge-south.csv

...rowleys Ridge (south)/active/crowleys_ridge_south.geojson