doc: document new Android default linker

Change-Id: I3557f6726afe325db79b2c972d107b3bcc103b8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/235819
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/doc/go1.15.html b/doc/go1.15.html
index aedf5281..eccd9c2 100644
--- a/doc/go1.15.html
+++ b/doc/go1.15.html
@@ -55,6 +55,15 @@
   on Windows.
 </p>
 
+<h3 id="android">Android</h3>
+
+<p> <!-- golang.org/cl/235017 golang.org/issue/38838 -->
+	When linking binaries for Android, Go 1.15 explicitly selects
+	the <code>lld</code> linker available in recent versions of the NDK.
+	The <code>lld</code> linker avoids crashes on some devices, and is
+	planned to become the default NDK linker in a future NDK version.
+</p>
+
 <p>
 TODO
 </p>