Docs: Update anchor links to use existing linkrefs (refs #13715) (#13741

)

This is a partial follow-up to some future work pointed out by
@mdjermanovic in #13715. @mdjermanovic, feel free to take over this
branch or close this PR in favor of another that does this as part of
the more complete update you had in mind.

docs/developer-guide/nodejs-api.md

@@ -16,10 +16,10 @@ While ESLint is designed to be run on the command line, it's possible to use ESL
     * [static version][eslint-version]
     * [static outputFixes()][eslint-outputFixes]
     * [static getErrorResults()][eslint-getErrorResults]
-    * [LintResult type](#-lintresult-type)
-    * [LintMessage type](#-lintmessage-type)
-    * [EditInfo type](#-editinfo-type)
-    * [Formatter type](#-formatter-type)
+    * [LintResult type][lintresult]
+    * [LintMessage type][lintmessage]
+    * [EditInfo type][editinfo]
+    * [Formatter type][formatter]
 * [SourceCode](#sourcecode)
     * [splitLines()](#sourcecode-splitlines)
 * [Linter](#linter)