docs) fixes issue in example for using compose
docs) fixes issue in example for using compose

The docs suggest that the compose element component should supply a view attribute and bind a path to a html file. The example is working, but it is very error prone.

This works as expected:
  <compose view-model=" view.bind="hello.html"></compose>

But when the view is being retrieved from a different directory, it starts to give errors:
  <compose view-model=" view.bind="../hello.html"></compose>

Gives an error like:
  ERROR [app-router] Error: Parser Error: Unexpected token . at column 1 in [xxx.html]

The fix to this issue is to either remove the `.bind`:
  <compose view-model=" view="../hello.html"></compose>

or add single quotes:
  <compose view-model=" view.bind="'../hello.html'"></compose>
aurelia/templating,aurelia/templating,AshleyGrant/templating