Correct spelling of "sqlfluff" in README. (#1988)

It was previously spelled "slqfluff."

README.md

@@ -92,7 +92,7 @@ Developers on **GitHub** can call the **GitHub Action** to lint their code base
 | **Rust**                         | [Rustfmt](https://github.com/rust-lang/rustfmt) / [Clippy](https://github.com/rust-lang/rust-clippy)                                                                          |
 | **Shell**                        | [Shellcheck](https://github.com/koalaman/shellcheck) / [executable bit check] / [shfmt](https://github.com/mvdan/sh)                                                          |
 | **Snakemake**                    | [snakefmt](https://github.com/snakemake/snakefmt/) / [snakemake --lint](https://snakemake.readthedocs.io/en/stable/snakefiles/writing_snakefiles.html#best-practices)         |
-| **SQL**                          | [sql-lint](https://github.com/joereynolds/sql-lint) / [slqfluff](https://github.com/sqlfluff/sqlfluff)                                                                        |
+| **SQL**                          | [sql-lint](https://github.com/joereynolds/sql-lint) / [sqlfluff](https://github.com/sqlfluff/sqlfluff)                                                                        |
 | **Tekton**                       | [tekton-lint](https://github.com/IBM/tekton-lint)                                                                                                                             |
 | **Terraform**                    | [tflint](https://github.com/terraform-linters/tflint) / [terrascan](https://github.com/accurics/terrascan)                                                                    |
 | **Terragrunt**                   | [terragrunt](https://github.com/gruntwork-io/terragrunt)                                                                                                                      |