[docgen] Update docs

skip-checks: true

doc/conform.txt

@@ -208,7 +208,7 @@ FORMATTERS                                                    *conform-formatter
 `cljstyle` - Formatter for Clojure code.
 `cmake_format` - Parse cmake listfiles and format them nicely.
 `codespell` - Check code for common misspellings.
-`crystal`- Format Crystal code.
+`crystal` - Format Crystal code.
 `csharpier` - The opinionated C# code formatter.
 `cue_fmt` - Format CUE files using `cue fmt` command.
 `darker` - Run black only on changed lines.