docs: https all the links \o/

Most of them already redirected to https anyway, so we might as well
avoid the redirection and the security implications by linking directly
to the right protocol.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Brian Paul <brianp@vmware.com>
diff --git a/docs/developers.html b/docs/developers.html
index 85b6979..372bd38 100644
--- a/docs/developers.html
+++ b/docs/developers.html
@@ -20,7 +20,7 @@
 Both professional and volunteer developers contribute to Mesa.
 </p>
 <p>
-<a href="http://www.vmware.com/">VMware</a>
+<a href="https://www.vmware.com/">VMware</a>
 employs several of the main Mesa developers including Brian Paul
 and Keith Whitwell.
 </p>
@@ -44,7 +44,7 @@
 </p>
 
 <p>
-<a href="http://www.lunarg.com/">LunarG</a> can be contacted
+<a href="https://www.lunarg.com/">LunarG</a> can be contacted
 for custom Mesa / 3D graphics development.
 </p>