Ignore docs build directory
Ignore docs build directory

hmoco/waterbutler,rdhyee/waterbutler,kwierman/waterbutler,icereval/waterbutler,Johnetordoff/waterbutler,CenterForOpenScience/waterbutler,Ghalko/waterbutler,RCOSDP/waterbutler,TomBaxter/waterbutler,chrisseto/waterbutler,cosenal/waterbutler,rafaeldelucena/waterbutler,felliott/waterbutler