README only. Removed 3 colons from github_install and added simpler require(devtools) instead.
README only. Removed 3 colons from github_install and added simpler require(devtools) instead.

jangorecki/data.table,Rdatatable/data.table,vlulla/data.table,jangorecki/data.table,vlulla/data.table,jangorecki/data.table,Rdatatable/data.table,vlulla/data.table,jangorecki/data.table,Rdatatable/data.table,Rdatatable/data.table,vlulla/data.table