Add x86asmatt as 3rd party language (#3834)

CHANGES.md

@@ -12,6 +12,10 @@ Parser:
 - (enh) prevent rehighlighting of an element [joshgoebel][]
 - added 3rd party Iptables grammar to SUPPORTED_LANGUAGES [Checconio][]
 
+New Grammars:
+
+- added 3rd party x86asmatt grammar to SUPPORTED_LANGUAGES [gondow][]
+
 Core Grammars:
 
 - enh(haxe) added `final`, `is`, `macro` keywords and `$` identifiers [Robert Borghese][]
@@ -45,7 +49,7 @@ Dev tool:
 [mvorisek]: https://github.com/mvorisek
 [qoheniac]: https://github.com/qoheniac
 [Samuel Bishop]: https://github.com/dannflor
-
+[gondow]: https://github.com/gondow
 
 ## Version 11.8.0
 

SUPPORTED_LANGUAGES.md

@@ -236,6 +236,7 @@ The table below shows the full list of languages (and corresponding classes/alia
 | X#                      | xsharp, xs, prg        | [highlightjs-xsharp](https://github.com/InfomindsAg/highlightjs-xsharp) |
 | X++                     | axapta, x++            |         |
 | x86 Assembly            | x86asm                 |         |
+| x86 Assembly (AT&T)     | x86asmatt              | [highlightjs-x86asmatt](https://github.com/gondow/highlightjs-x86asmatt)  |
 | XL                      | xl, tao                |         |
 | XQuery                  | xquery, xpath, xq, xqm |         |
 | YAML                    | yml, yaml              |         |