doc: document go1.5.2

Change-Id: Ib6a9e131113523e6b1e5b7604480028b9ffbfa93
Reviewed-on: https://go-review.googlesource.com/17178Reviewed-by: Andrew Gerrand <adg@golang.org>

doc/devel/release.html

@@ -21,6 +21,14 @@ Read the <a href="/doc/go1.5">Go 1.5 Release Notes</a> for more information.
 
 <h3 id="go1.5.minor">Minor revisions</h3>
 
+<p>
+go1.5.2 (released 2015/11/23) includes bug fixes to the compiler, linker, and
+the <code>mime/multipart</code>, <code>net</code>, and <code>runtime</code>
+packages.
+See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.5.2">Go
+1.5.2 milestone</a> on our issue tracker for details.
+</p>
+
 <p>
 go1.5.1 (released 2015/09/08) includes bug fixes to the compiler, assembler, and
 the <code>fmt</code>, <code>net/textproto</code>, <code>net/http</code>, and

doc/install-source.html

@@ -173,7 +173,7 @@ Then clone the repository and check out the latest release tag:</p>
 <pre>
 $ git clone https://go.googlesource.com/go
 $ cd go
-$ git checkout go1.5.1
+$ git checkout go1.5.2
 </pre>
 
 <h2 id="head">(Optional) Switch to the master branch</h2>
@@ -352,7 +352,7 @@ New releases are announced on the
 <a href="//groups.google.com/group/golang-announce">golang-announce</a>
 mailing list.
 Each announcement mentions the latest release tag, for instance,
-<code>go1.5.1</code>.
+<code>go1.5.2</code>.
 </p>
 
 <p>