doc: fix broken internal links

Signed-off-by: greenhead <shren0812@gmail.com>

Author: greenheadHQ

doc/api/buffer.md

@@ -5634,7 +5634,7 @@ introducing security vulnerabilities into an application.
 [`buf.compare()`]: #bufcomparetarget-targetstart-targetend-sourcestart-sourceend
 [`buf.entries()`]: #bufentries
 [`buf.fill()`]: #buffillvalue-offset-end-encoding
-[`buf.indexOf()`]: #bufindexofvalue-byteoffset-encoding
+[`buf.indexOf()`]: #bufindexofvalue-start-end-encoding
 [`buf.keys()`]: #bufkeys
 [`buf.length`]: #buflength
 [`buf.slice()`]: #bufslicestart-end

doc/api/child_process.md

@@ -2390,7 +2390,7 @@ or [`child_process.fork()`][].
 [`subprocess.stdin`]: #subprocessstdin
 [`subprocess.stdio`]: #subprocessstdio
 [`subprocess.stdout`]: #subprocessstdout
-[`util.convertProcessSignalToExitCode()`]: util.md#utilconvertprocesssignaltoexitcodesignalcode
+[`util.convertProcessSignalToExitCode()`]: util.md#utilconvertprocesssignaltoexitcodesignal
 [`util.promisify()`]: util.md#utilpromisifyoriginal
 [synchronous counterparts]: #synchronous-process-creation
 [v8.serdes]: v8.md#serialization-api

doc/contributing/large-pull-requests.md

@@ -8,7 +8,7 @@
   * [Review guide](#review-guide)
   * [Approval requirements](#approval-requirements)
   * [Dependency changes](#dependency-changes)
-* [Splitting large pull requests](#splitting-large-pull-requests)
+* [Avoiding large pull requests](#avoiding-large-pull-requests)
   * [Feature forks and branches](#feature-forks-and-branches)
 * [Guidance for reviewers](#guidance-for-reviewers)