doc/1.13: remove draft note and make various fixes

Fixes #33954

Change-Id: Idfe71bf825adcd7cbf70cd139b3e779963394ff6
Reviewed-on: https://go-review.googlesource.com/c/go/+/192105
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>

doc/go1.13.html

@@ -15,13 +15,13 @@ Do not send CLs removing the interior tags from such phrases.
   main ul li { margin: 0.5em 0; }
 </style>
 
-<h2 id="introduction">DRAFT RELEASE NOTES - Introduction to Go 1.13</h2>
+<h2 id="introduction">Introduction to Go 1.13</h2>
 
 <p>
-  <strong>
-    Go 1.13 is not yet released. These are work-in-progress
-    release notes. Go 1.13 is expected to be released in September 2019.
-  </strong>
+  The latest Go release, version 1.13, arrives six months after <a href="go1.12">Go 1.12</a>.
+  Most of its changes are in the implementation of the toolchain, runtime, and libraries.
+  As always, the release maintains the Go 1 <a href="/doc/go1compat.html">promise of compatibility</a>.
+  We expect almost all Go programs to continue to compile and run as before.
 </p>
 
 <p>
@@ -122,7 +122,7 @@ Do not send CLs removing the interior tags from such phrases.
 <h3 id="android">Android</h3>
 
 <p><!-- CL 170127 -->
-  Go programs are now compatible with Android Q.
+  Go programs are now compatible with Android 10.
 </p>
 
 <h3 id="darwin">Darwin</h3>
@@ -139,7 +139,8 @@ Do not send CLs removing the interior tags from such phrases.
   As <a href="go1.12#freebsd">announced</a> in the Go 1.12 release notes,
   Go 1.13 now requires FreeBSD 11.2 or later;
   support for previous versions has been discontinued.
-  FreeBSD 12.0 or later requires a kernel with the COMPAT_FREEBSD11 option set (this is the default).
+  FreeBSD 12.0 or later requires a kernel with the <code>COMPAT_FREEBSD11</code>
+  option set (this is the default).
 </p>
 
 <h3 id="illumos">Illumos</h3>
@@ -781,7 +782,7 @@ godoc
 <dl id="net"><dt><a href="/pkg/net/">net</a></dt>
   <dd>
     <p><!-- CL 156366 -->
-      On Unix systems where <code>use-vc</code> is set in <code>resolve.conf</code>, TCP is used for DNS resolution.
+      On Unix systems where <code>use-vc</code> is set in <code>resolv.conf</code>, TCP is used for DNS resolution.
     </p>
 
     <p><!-- CL 170678 -->
@@ -825,7 +826,8 @@ godoc
     </p>
 
     <p><!-- CL 140357 -->
-      When reusing HTTP/2, the <a href="/pkg/net/http/#Transport"><code>Transport</code></a> no longer performs unnecessary TLS handshakes.
+      <a href="/pkg/net/http/#Transport.MaxConnsPerHost"><code>Transport.MaxConnsPerHost</code></a> now works
+      properly with HTTP/2.
     </p>
 
     <p><!-- CL 154383 -->
@@ -872,7 +874,8 @@ godoc
     </p>
 
     <p><!-- CL 179457 -->
-      <a href="/pkg/net/http/#Transport"><code>Transport</code></a> now silently ignores a <code>408 "Request Timeout"</code> response.
+      The <a href="/pkg/net/http/#Transport"><code>Transport</code></a> no longer logs errors when servers
+      gracefully shut down idle connections using a <code>"408 Request Timeout"</code> response.
     </p>
 
 </dl><!-- net/http -->
@@ -997,9 +1000,10 @@ godoc
 <dl id="syscall/js"><dt><a href="/pkg/syscall/js/">syscall/js</a></dt>
   <dd>
     <p><!-- CL 177537 -->
-      TypedArrayOf has been replaced by
+      <code>TypedArrayOf</code> has been replaced by
       <a href="/pkg/syscall/js/#CopyBytesToGo"><code>CopyBytesToGo</code></a> and
-      <a href="/pkg/syscall/js/#CopyBytesToJS"><code>CopyBytesToJS</code></a> for copying bytes between a byte slice and a Uint8Array.
+      <a href="/pkg/syscall/js/#CopyBytesToJS"><code>CopyBytesToJS</code></a> for copying bytes
+      between a byte slice and a <code>Uint8Array</code>.
     </p>
 
 </dl><!-- syscall/js -->