Rewrite section about bower.json

cookbook/frontend/bower.rst

@@ -135,10 +135,11 @@ For more details, read the article `Checking in front-end dependencies`_.
 But, it's very possible that Bower will add a lock feature in the future
 (e.g. `bower/bower#1748`_).
 
-Bower.json
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Another option is to just commit your bower.json to git which holds the different dependencies. Then use `bower install` to install the required dependencies.
+If you don't care too much about having *exact* the same versions, you can only
+commit the ``bower.json`` file. Running ``bower install`` will give you the
+latest versions within the specified version range of each package in
+``boewr.json``. Using strict version constraints (e.g. ``1.10.*``) is often
+enough to ensure only bringing in compatible versions.
 
 .. _Bower: http://bower.io
 .. _`Node.js`: https://nodejs.org