Fix gitignore for new docs dir structure
Fix gitignore for new docs dir structure

srblum/server,macieksmuga/server,david4096/ga4gh-server,macieksmuga/server,srblum/server,diekhans/ga4gh-server,dcolligan/server,ohsu-computational-biology/server,ohsu-computational-biology/server,diekhans/ga4gh-server,saupchurch/server,dcolligan/server,ga4gh/server,saupchurch/server,ohsu-computational-biology/server,david4096/ga4gh-server,diekhans/ga4gh-server,david4096/ga4gh-server,dcolligan/server,ga4gh/server,macieksmuga/server,ga4gh/server,srblum/server,saupchurch/server