Fastfix for previous two commits (sorry) and chroma update.

Well, doing "git add ." not from repository's root is a bad idea.

Updated chroma dependency, added more languages to syntax highlighting.

vendor/github.com/alecthomas/chroma/lexers/e/elixir.go

@@ -36,9 +36,9 @@ var Elixir = internal.Register(MustNewLexer(
 			{`\\\\|\<\<|\>\>|\=\>|\(|\)|\:|\;|\,|\[|\]`, Punctuation, nil},
 			{`&\d`, NameEntity, nil},
 			{`\<|\>|\+|\-|\*|\/|\!|\^|\&`, Operator, nil},
-			{`0b[01]+`, LiteralNumberBin, nil},
-			{`0o[0-7]+`, LiteralNumberOct, nil},
-			{`0x[\da-fA-F]+`, LiteralNumberHex, nil},
+			{`0b[01](_?[01])*`, LiteralNumberBin, nil},
+			{`0o[0-7](_?[0-7])*`, LiteralNumberOct, nil},
+			{`0x[\da-fA-F](_?[\dA-Fa-f])*`, LiteralNumberHex, nil},
 			{`\d(_?\d)*\.\d(_?\d)*([eE][-+]?\d(_?\d)*)?`, LiteralNumberFloat, nil},
 			{`\d(_?\d)*`, LiteralNumberInteger, nil},
 			{`"""\s*`, LiteralStringHeredoc, Push("heredoc_double")},