Merge "Add missing "from" in Content Provider Basics" into mnc-docs

<!-- Constructing the query -->

<h3 id="Query">Constructing the query</h3>

<p>

    The next step in retrieving data a provider is to construct a query. This first snippet

    The next step in retrieving data from a provider is to construct a query. This first snippet

    defines some variables for accessing the User Dictionary Provider:

</p>

<pre class="prettyprint">