docs(guide/HTML Compiler): replaced 'locals' with 'scope'

In "Understanding How Scopes Work with Transcluded Directives" section, a text referred to an obsolete 'locals' instead of 'scope'.
Merge branch 'patch-1' of github.com:chatchavan/angular.js into patch-1

* 'patch-1' of github.com:chatchavan/angular.js:
  docs(guide/HTML Compiler): replaced 'locals' with 'scope'