[docgen] Update docs

skip-checks: true

README.md

@@ -260,6 +260,7 @@ You can view this list in vim with `:help conform-formatters`
 - [shellharden](https://github.com/anordal/shellharden) - The corrective bash syntax highlighter.
 - [shfmt](https://github.com/mvdan/sh) - A shell parser, formatter, and interpreter with `bash` support.
 - [sql_formatter](https://github.com/sql-formatter-org/sql-formatter) - A whitespace formatter for different query languages.
+- [sqlfluff](https://github.com/sqlfluff/sqlfluff) - A modular SQL linter and auto-formatter with support for multiple dialects and templated code.
 - [squeeze_blanks](https://www.gnu.org/software/coreutils/manual/html_node/cat-invocation.html#cat-invocation) - Squeeze repeated blank lines into a single blank line via `cat -s`.
 - [standardjs](https://standardjs.com) - JavaScript Standard style guide, linter, and formatter.
 - [standardrb](https://github.com/standardrb/standard) - Ruby's bikeshed-proof linter and formatter.

doc/conform.txt

@@ -291,6 +291,8 @@ FORMATTERS                                                    *conform-formatter
 `shellharden` - The corrective bash syntax highlighter.
 `shfmt` - A shell parser, formatter, and interpreter with `bash` support.
 `sql_formatter` - A whitespace formatter for different query languages.
+`sqlfluff` - A modular SQL linter and auto-formatter with support for multiple
+           dialects and templated code.
 `squeeze_blanks` - Squeeze repeated blank lines into a single blank line via
                  `cat -s`.
 `standardjs` - JavaScript Standard style guide, linter, and formatter.