Update README.md

[tomzx]

It appears lots of changes have been done since I last synced (September 1st, 2016). From what I see, the gulpfiles have moved to the apps directory and the clientonly gulpfile is now non-functional.

› gulp prod
[09:20:16] Using gulpfile E:\GIT\benome\client\build\clientonly\gulpfile.js
[09:20:16] Starting 'prod'...
events.js:160
      throw er; // Unhandled 'error' event
      ^

Error: Cannot find module 'E:\GIT\benome\client\js\Entry.js' from 'E:\GIT\benome\client\build\clientonly'
    at E:\GIT\benome\client\build\node_modules\resolve\lib\async.js:55:21
    at load (E:\GIT\benome\client\build\node_modules\resolve\lib\async.js:69:43)
    at onex (E:\GIT\benome\client\build\node_modules\resolve\lib\async.js:92:31)
    at E:\GIT\benome\client\build\node_modules\resolve\lib\async.js:22:47
    at FSReqWrap.oncomplete (fs.js:123:15)

Would it be possible to have the README.md updated, particularly regarding how to build? Thanks!