docs: add largeHeap attribute to app manifest doc

             android:<a href="#hwaccel">hardwareAccelerated</a>=["true" | "false"]

             android:<a href="#hwaccel">hardwareAccelerated</a>=["true" | "false"]

             android:<a href="#icon">icon</a>="<i>drawable resource</i>"

             android:<a href="#icon">icon</a>="<i>drawable resource</i>"

             android:<a href="#killrst">killAfterRestore</a>=["true" | "false"]

             android:<a href="#killrst">killAfterRestore</a>=["true" | "false"]

             android:<a href="#largeHeap">largeHeap</a>=["true" | "false"]

             android:<a href="#label">label</a>="<i>string resource</i>"

             android:<a href="#label">label</a>="<i>string resource</i>"

             android:<a href="#logo">logo</a>="<i>drawable resource</i>"

             android:<a href="#logo">logo</a>="<i>drawable resource</i>"

             android:<a href="#space">manageSpaceActivity</a>="<i>string</i>"

             android:<a href="#space">manageSpaceActivity</a>="<i>string</i>"

terminated.

terminated.

</p></dd>

</p></dd>

<dt><a name="largeHeap"></a>{@code android:largeHeap}</dt>

<dd>Whether your application's processes should be created with a large Dalvik heap. This applies to

all processes created for the application. It only applies to the first application loaded into a

process; if you're using a shared user ID to allow multiple applications to use a process, they all

must use this option consistently or they will have unpredictable results.

<p>Most apps should not need this and should instead focus on reducing their overall memory usage for

improved performance. Enabling this also does not guarantee a fixed increase in available memory,

because some devices are constrained by their total available memory.</p>

<p>To query the available memory size at runtime, use the methods {@link

  android.app.ActivityManager#getMemoryClass()} or {@link

  android.app.ActivityManager#getLargeMemoryClass()}.</p>

</dd>

<dt><a name="label"></a>{@code android:label}</dt>

<dt><a name="label"></a>{@code android:label}</dt>

<dd>A user-readable label for the application as a whole, and a default 

<dd>A user-readable label for the application as a whole, and a default 

label for each of the application's components.  See the individual 

label for each of the application's components.  See the individual