docs: Fixing small typos in API overview

Fixed a few small typo-level bugs in the Scoped Directory Access
section of the API overview N preview doc.

Stage is noted in Gerrit comments.

Bug: 27568174
Change-Id: Icb954888465344dd181c2bb1a5447663694a3096
diff --git a/docs/html/preview/api-overview.jd b/docs/html/preview/api-overview.jd
index 5cef965..e6a90bb 100644
--- a/docs/html/preview/api-overview.jd
+++ b/docs/html/preview/api-overview.jd
@@ -471,14 +471,13 @@
 
 <h2 id="scoped_directory_access">Scoped directory access</h2>
 
-<p><p>In Android Android N, apps can use new APIs to request access to specific <a
+<p>In Android N, apps can use new APIs to request access to specific <a
 href="{@docRoot}guide/topics/data/data-storage.html#filesExternal">external
 storage</a> directories, including directories on removable media such as SD
 cards. The new APIs greatly simplify how your application accesses standard
 external storage directories, such as the <code>Pictures</code> directory. Apps
-like photo apps can use these APIs instead of using </p>
-
-<p><code>READ_EXTERNAL_STORAGE</code>, which grants access to all storage
+like photo apps can use these APIs instead of using
+<code>READ_EXTERNAL_STORAGE</code>, which grants access to all storage
 directories, or the Storage Access Framework, which makes the user navigate to
 the directory.</p>