Update table of supported languages

Author: pabluk

Diff for: README.md

@@ -36,29 +36,30 @@ translators for Pygments lexers and styles.
 Prefix | Language
 :----: | --------
 A | ABAP, ABNF, ActionScript, ActionScript 3, Ada, Angular2, ANTLR, ApacheConf, APL, AppleScript, Arduino, Awk
-B | Ballerina, Base Makefile, Bash, Batchfile, BlitzBasic, BNF, Brainfuck
-C | C, C#, C++, Cap'n Proto, Cassandra CQL, Ceylon, CFEngine3, cfstatement, ChaiScript, Cheetah, Clojure, CMake, COBOL, CoffeeScript, Common Lisp, Coq, Crystal, CSS, Cython
+B | Ballerina, Base Makefile, Bash, Batchfile, BibTeX, BlitzBasic, BNF, Brainfuck
+C | C, C#, C++, Caddyfile, Caddyfile Directives, Cap'n Proto, Cassandra CQL, Ceylon, CFEngine3, cfstatement, ChaiScript, Cheetah, Clojure, CMake, COBOL, CoffeeScript, Common Lisp, Coq, Crystal, CSS, Cython
 D | D, Dart, Diff, Django/Jinja, Docker, DTD
 E | EBNF, Elixir, Elm, EmacsLisp, Erlang
 F | Factor, Fish, Forth, Fortran, FSharp
-G | GAS, GDScript, Genshi, Genshi HTML, Genshi Text, GLSL, Gnuplot, Go, Go HTML Template, Go Text Template, GraphQL, Groovy
-H | Handlebars, Haskell, Haxe, HCL, Hexdump, HTML, HTTP, Hy
-I | Idris, INI, Io
+G | GAS, GDScript, Genshi, Genshi HTML, Genshi Text, Gherkin, GLSL, Gnuplot, Go, Go HTML Template, Go Text Template, GraphQL, Groovy
+H | Handlebars, Haskell, Haxe, HCL, Hexdump, HLB, HTML, HTTP, Hy
+I | Idris, Igor, INI, Io
 J | J, Java, JavaScript, JSON, Julia, Jungle
 K | Kotlin
 L | Lighttpd configuration file, LLVM, Lua
 M | Mako, markdown, Mason, Mathematica, Matlab, MiniZinc, MLIR, Modula-2, MonkeyC, MorrowindScript, Myghty, MySQL
 N | NASM, Newspeak, Nginx configuration file, Nim, Nix
 O | Objective-C, OCaml, Octave, OpenSCAD, Org Mode
-P | PacmanConf, Perl, PHP, Pig, PkgConfig, PL/pgSQL, plaintext, PostgreSQL SQL dialect, PostScript, POVRay, PowerShell, Prolog, Protocol Buffer, Puppet, Python, Python 3
+P | PacmanConf, Perl, PHP, PHTML, Pig, PkgConfig, PL/pgSQL, plaintext, Pony, PostgreSQL SQL dialect, PostScript, POVRay, PowerShell, Prolog, PromQL, Protocol Buffer, Puppet, Python, Python 3
 Q | QBasic
-R | R, Racket, Ragel, react, reg, reStructuredText, Rexx, Ruby, Rust
-S | Sass, Scala, Scheme, Scilab, SCSS, Smalltalk, Smarty, SML, Snobol, Solidity, SPARQL, SQL, SquidConf, Swift, SYSTEMD, systemverilog
+R | R, Racket, Ragel, react, ReasonML, reg, reStructuredText, Rexx, Ruby, Rust
+S | SAS, Sass, Scala, Scheme, Scilab, SCSS, Smalltalk, Smarty, Snobol, Solidity, SPARQL, SQL, SquidConf, Standard ML, Stylus, Swift, SYSTEMD, systemverilog
 T | TableGen, TASM, Tcl, Tcsh, Termcap, Terminfo, Terraform, TeX, Thrift, TOML, TradingView, Transact-SQL, Turing, Turtle, Twig, TypeScript, TypoScript, TypoScriptCssData, TypoScriptHtmlData
 V | VB.net, verilog, VHDL, VimL, vue
 W | WDTE
 X | XML, Xorg
-Y | YAML
+Y | YAML, YANG
+Z | Zig
 
 
 _I will attempt to keep this section up to date, but an authoritative list can be