Add tag insertion button

README.txt

@@ -16,7 +16,8 @@ Example 3:
 
 [code]
 Just some text.
-Nothing is highlighted, it is just kept monospace, preserving the      spaces and *special* symbols.
+Nothing is highlighted, it is just kept monospace, preserving the
+spaces      and *special* symbols.
 [/code]
 
 Wrong:
@@ -33,30 +34,39 @@ int x = 0;
 
 Supported languages:
 
-abap, as, as3, ada, antlr, antlr-as, antlr-csharp, antlr-cpp, antlr-java, antlr-objc, antlr-perl, antlr-python,
-antlr-ruby, apacheconf, applescript, aspectj, aspx-cs, aspx-vb, asy, ahk, autoit, awk, basemake, bash, console, bat,
-bbcode, befunge, blitzmax, boo, brainfuck, bro, bugs, c, csharp, cpp, c-objdump, ca65, cbmbas, ceylon, cfengine3, cfs,
-cheetah, clojure, cmake, cobol, cobolfree, coffee-script, cfm, common-lisp, coq, cpp-objdump, croc, css, css+django,
-css+genshitext, css+lasso, css+mako, css+myghty, css+php, css+erb, css+smarty, cuda, cython, d, d-objdump, dpatch,
-dart, control, sourceslist, delphi, dg, diff, django, dtd, duel, dylan, dylan-console, dylan-lid, ec, ecl, elixir, iex,
-ragel-em, erb, erlang, erl, evoque, factor, fancy, fan, felix, fortran, clipper, fsharp, gas, genshi, genshitext, pot,
-cucumber, glsl, gnuplot, go, gooddata-cl, gosu, gst, groff, groovy, haml, haskell, hx, html, html+cheetah, html+django,
-html+evoque, html+genshi, html+lasso, html+mako, html+myghty, html+php, html+smarty, html+velocity, http, haxeml,
-hybris, idl, ini, io, ioke, irc, jade, jags, java, jsp, js, js+cheetah, js+django, js+genshitext, js+lasso, js+mako,
-js+myghty, js+php, js+erb, js+smarty, json, julia, jlcon, kconfig, koka, kotlin, lasso, lighty, lhs, live-script, llvm,
-logos, logtalk, lua, make, mako, maql, mason, matlab, matlabsession, minid, modelica, modula2, trac-wiki, monkey,
-moocode, moon, mscgen, mupad, mxml, myghty, mysql, nasm, nemerle, newlisp, newspeak, nginx, nimrod, nsis, numpy,
-objdump, objective-c, objective-c++, objective-j, ocaml, octave, ooc, opa, openedge, perl, php, plpgsql, psql,
-postgresql, postscript, pov, powershell, prolog, properties, protobuf, puppet, pypylog, python, python3, py3tb, pycon,
-pytb, qml, racket, ragel, ragel-c, ragel-cpp, ragel-d, ragel-java, ragel-objc, ragel-ruby, raw, rconsole, rd, rebol,
-redcode, registry, rst, rhtml, RobotFramework, spec, rb, rbcon, rust, splus, sass, scala, ssp, scaml, scheme, scilab,
-scss, shell-session, smali, smalltalk, smarty, snobol, sp, sql, sqlite3, squidconf, stan, sml, systemverilog, tcl,
-tcsh, tea, tex, text, treetop, ts, urbiscript, vala, vb.net, velocity, verilog, vgl, vhdl, vim, xml, xml+cheetah,
-xml+django, xml+evoque, xml+lasso, xml+mako, xml+myghty, xml+php, xml+erb, xml+smarty, xml+velocity, xquery, xslt,
-xtend, yaml.
+abap, as, as3, ada, antlr, antlr-as, antlr-csharp, antlr-cpp, antlr-java,
+antlr-objc, antlr-perl, antlr-python, antlr-ruby, apacheconf, applescript,
+aspectj, aspx-cs, aspx-vb, asy, ahk, autoit, awk, basemake, bash, console,
+bat, bbcode, befunge, blitzmax, boo, brainfuck, bro, bugs, c, csharp, cpp,
+c-objdump, ca65, cbmbas, ceylon, cfengine3, cfs, cheetah, clojure, cmake,
+cobol, cobolfree, coffee-script, cfm, common-lisp, coq, cpp-objdump, croc,
+css, css+django, css+genshitext, css+lasso, css+mako, css+myghty, css+php,
+css+erb, css+smarty, cuda, cython, d, d-objdump, dpatch, dart, control,
+sourceslist, delphi, dg, diff, django, dtd, duel, dylan, dylan-console,
+dylan-lid, ec, ecl, elixir, iex, ragel-em, erb, erlang, erl, evoque, factor,
+fancy, fan, felix, fortran, clipper, fsharp, gas, genshi, genshitext, pot,
+cucumber, glsl, gnuplot, go, gooddata-cl, gosu, gst, groff, groovy, haml,
+haskell, hx, html, html+cheetah, html+django, html+evoque, html+genshi,
+html+lasso, html+mako, html+myghty, html+php, html+smarty, html+velocity,
+http, haxeml, hybris, idl, ini, io, ioke, irc, jade, jags, java, jsp, js,
+js+cheetah, js+django, js+genshitext, js+lasso, js+mako, js+myghty, js+php,
+js+erb, js+smarty, json, julia, jlcon, kconfig, koka, kotlin, lasso, lighty,
+lhs, live-script, llvm, logos, logtalk, lua, make, mako, maql, mason, matlab,
+matlabsession, minid, modelica, modula2, trac-wiki, monkey, moocode, moon,
+mscgen, mupad, mxml, myghty, mysql, nasm, nemerle, newlisp, newspeak, nginx,
+nimrod, nsis, numpy, objdump, objective-c, objective-c++, objective-j, ocaml,
+octave, ooc, opa, openedge, perl, php, plpgsql, psql, postgresql, postscript,
+pov, powershell, prolog, properties, protobuf, puppet, pypylog, python,
+python3, py3tb, pycon, pytb, qml, racket, ragel, ragel-c, ragel-cpp, ragel-d,
+ragel-java, ragel-objc, ragel-ruby, raw, rconsole, rd, rebol, redcode,
+registry, rst, rhtml, RobotFramework, spec, rb, rbcon, rust, splus, sass,
+scala, ssp, scaml, scheme, scilab, scss, shell-session, smali, smalltalk,
+smarty, snobol, sp, sql, sqlite3, squidconf, stan, sml, systemverilog, tcl,
+tcsh, tea, tex, text, treetop, ts, urbiscript, vala, vb.net, velocity,
+verilog, vgl, vhdl, vim, xml, xml+cheetah, xml+django, xml+evoque, xml+lasso,
+xml+mako, xml+myghty, xml+php, xml+erb, xml+smarty, xml+velocity, xquery,
+xslt, xtend, yaml.
 
 Some aliases:
 
-c++, lisp, c#, f#.
-
-Note: convenient button for selecting language is coming soon.
+c++, lisp, c#, f#, ruby.