[ARM][wwwdocs]: Document Armv8.1-M, Helium Intrinsics and Cortex-M55 changes.

[Gerald Pfeifer]

On Sat, 16 May 2020, Gerald Pfeifer wrote:
> This brought some problems with that page which I addressed per the
> follow-up patch below.

Some more, notably three cases of <code>...<code> => <code>...</code>,
note that closing </code>.

Pushed.

Gerald


commit bb406fa02b9a9c47861bc2246513c198bffc90bb
Author: Gerald Pfeifer <gerald@pfeifer.com>
Date:   Sat May 16 18:14:36 2020 +0200

    Further markup fixes, properly closing <code> elements.

diff --git a/htdocs/gcc-10/changes.html b/htdocs/gcc-10/changes.html
index ce2efe00..2a94b13d 100644
--- a/htdocs/gcc-10/changes.html
+++ b/htdocs/gcc-10/changes.html
@@ -805,17 +805,17 @@ typedef svbool_t pred512 __attribute__((arm_sve_vector_bits(512)));
   now supports this option.</li>
   <li>Support for the
   <a href="https://developer.arm.com/architectures/cpu-architecture/m-profile">
-  Armv8.1-M Mainline</a> Architecture has been added.</li>
+  Armv8.1-M Mainline</a> Architecture has been added.
   <ul>
     <li>Armv8.1-M Mainline can be enabled by using the
-      <code>-march=armv8.1-m.main<code> command-line option.</li>
-  </ul>
+      <code>-march=armv8.1-m.main</code> command-line option.</li>
+  </ul></li>
   <li>Support for the
   <a href="https://developer.arm.com/architectures/instruction-sets/simd-isas/helium/helium-intrinsics">
   MVE</a> beta ACLE intrinsics has been added. These intrinsics can be
   enabled by including the arm_mve.h header file and passing the
-  <code>+mve<code> or <code>+mve.fp<code> option extensions (for
-  example: <code>-march=armv8.1-m.main+mve<code>).</li>
+  <code>+mve</code> or <code>+mve.fp</code> option extensions (for
+  example: <code>-march=armv8.1-m.main+mve</code>).</li>
   <li>Support for the Custom Datapath Extension beta ACLE
   <a href="https://developer.arm.com/docs/101028/0010/custom-datapath-extension">
   intrinsics</a> has been added.</li>