docs(config options): rewrite forkProcessing

[HonkingGoose]

Changes

• Rewrite docs for forkProcessing
• Monospace word in description for the config option

Context

Drive-by PR, not closing any issue.

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required

How I've tested my work (please select one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests but ran on a real repository, or
• Both unit tests + ran on a real repository

[HonkingGoose]

The linter passes, but the build test shouts at me:

FAIL test/website-docs.spec.ts (5.683 s, 1271 MB heap size)
  ● website-docs › has headers for every required sub-option

    expect(received).toEqual(expected) // deep equality

    - Expected  - 0
    + Received  + 4

    @@ -1,6 +1,10 @@
      Array [
    +   "Allowed filenames",
    +   "Process a fork in `autodiscover` mode`",
    +   "Process a fork in other modes",
    +   "When using the hosted GitHub Mend Renovate app",
        "abortIgnoreStatusCodes",
        "abortOnError",
        "allowedVersions",
        "artifactAuth",
        "authType",

      74 |
      75 |   it('has headers for every required sub-option', () => {
    > 76 |     expect(headers3).toEqual(expectedOptions3);
         |                      ^
      77 |   });
      78 |
      79 |   // Checking relatedOptions field in options

      at Object.<anonymous> (test/website-docs.spec.ts:76:22)


Test Suites: 1 failed, 598 passed, 599 total

What do you want me to do?

1. Remove headings and use bold text, or
2. Let somebody else adjust the test.

[rarkins]

(1) use bold

[renovate-release]

🎉 This PR is included in version 35.56.1 🎉

The release is available on:

• GitHub release
• 35.56.1

Your semantic-release bot 📦🚀