[fix bug 1222137] Add docs for locale templates.
[fix bug 1222137] Add docs for locale templates.

kyoshino/bedrock,glogiotatidis/bedrock,TheoChevalier/bedrock,ericawright/bedrock,craigcook/bedrock,sylvestre/bedrock,alexgibson/bedrock,gerv/bedrock,mkmelin/bedrock,gerv/bedrock,alexgibson/bedrock,pascalchevrel/bedrock,sylvestre/bedrock,alexgibson/bedrock,sylvestre/bedrock,pascalchevrel/bedrock,TheoChevalier/bedrock,TheJJ100100/bedrock,schalkneethling/bedrock,ericawright/bedrock,flodolo/bedrock,analytics-pros/mozilla-bedrock,jpetto/bedrock,MichaelKohler/bedrock,mozilla/bedrock,kyoshino/bedrock,craigcook/bedrock,mkmelin/bedrock,jgmize/bedrock,schalkneethling/bedrock,sgarrity/bedrock,jpetto/bedrock,MichaelKohler/bedrock,jpetto/bedrock,Sancus/bedrock,flodolo/bedrock,MichaelKohler/bedrock,jgmize/bedrock,flodolo/bedrock,ericawright/bedrock,jgmize/bedrock,kyoshino/bedrock,mozilla/bedrock,TheJJ100100/bedrock,hoosteeno/bedrock,glogiotatidis/bedrock,glogiotatidis/bedrock,CSCI-462-01-2017/bedrock,gerv/bedrock,analytics-pros/mozilla-bedrock,craigcook/bedrock,glogiotatidis/bedrock,TheJJ100100/bedrock,TheoChevalier/bedrock,Sancus/bedrock,hoosteeno/bedrock,sgarrity/bedrock,Sancus/bedrock,hoosteeno/bedrock,flodolo/bedrock,MichaelKohler/bedrock,analytics-pros/mozilla-bedrock,mozilla/bedrock,CSCI-462-01-2017/bedrock,mkmelin/bedrock,gerv/bedrock,mozilla/bedrock,pascalchevrel/bedrock,CSCI-462-01-2017/bedrock,TheJJ100100/bedrock,hoosteeno/bedrock,schalkneethling/bedrock,ericawright/bedrock,sgarrity/bedrock,jgmize/bedrock,CSCI-462-01-2017/bedrock,kyoshino/bedrock,mkmelin/bedrock,alexgibson/bedrock,pascalchevrel/bedrock,sylvestre/bedrock,TheoChevalier/bedrock,Sancus/bedrock,jpetto/bedrock,craigcook/bedrock,sgarrity/bedrock,analytics-pros/mozilla-bedrock,schalkneethling/bedrock