Add md018 no space and md019 for multiples spaces after hash heading (#37917)

Co-authored-by: Rachael Sewell <rachmari@github.com>

Author: gracepark

content/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-the-codeql-workflow-for-compiled-languages.md

@@ -50,7 +50,7 @@ You set up {% data variables.product.prodname_dotcom %} to run {% data variables
 
 If your workflow uses a `language` matrix, `autobuild` attempts to build each of the compiled languages listed in the matrix. Without a matrix `autobuild` attempts to build the supported compiled language that has the most source files in the repository. With the exception of Go, analysis of other compiled languages in your repository will fail unless you supply explicit build commands.
 
-##  About `autobuild` for {% data variables.product.prodname_codeql %}
+## About `autobuild` for {% data variables.product.prodname_codeql %}
 
 {% data reusables.code-scanning.autobuild-compiled-languages %}
 

src/content-linter/README.md

@@ -12,6 +12,8 @@ We are using the [markdownlint](https://github.com/DavidAnson/markdownlint) fram
 | [MD009](https://github.com/DavidAnson/markdownlint/blob/main/doc/md009.md) | No unnecessary whitespace from the end of the line. | warning |
 | [MD012](https://github.com/DavidAnson/markdownlint/blob/main/doc/md012.md) | No unnecessary blank lines. | warning |
 | [MD014](https://github.com/DavidAnson/markdownlint/blob/main/doc/md014.md) | Dollar signs should not be used before commands without showing output. | error |
+| [MD018](https://github.com/DavidAnson/markdownlint/blob/main/doc/md018.md) | Must have one space after a hash style heading. | error |
+| [MD019](https://github.com/DavidAnson/markdownlint/blob/main/doc/md019.md) | Must not have spaces after a hash style heading. | error |
 | [MD024](https://github.com/DavidAnson/markdownlint/blob/main/doc/md024.md) | Disallow headings with the same content. | error |
 | [MD011](https://github.com/DavidAnson/markdownlint/blob/main/doc/md011.md) | Make sure that link syntax is not reversed. | error |
 | [MD111](./linting-rules/image-alt-text-length.js) | Images alternate text should be between 40-150 characters. | warning |

src/content-linter/scripts/markdownlint.js

@@ -32,6 +32,8 @@ async function main() {
     MD009: true,
     MD011: true,
     MD012: true,
+    MD018: true,
+    MD019: true,
     MD014: true,
     MD024: true,
     MD111: true,