docs: add documentation to custom changelog tasks #107

Job	Run time
run checks using gradlew	1m 59s
osx-x86_64 nativeCompile testing	10m 35s
linux-x86_64 nativeCompile testing	3m 19s
windows-x86_64 nativeCompile testing	8m 45s
linux-aarch_64 nativeCompile testing	3m 20s
osx-aarch_64 nativeCompile testing	4m 6s
dry run release (windows-x86_64, windows-latest)	1m 34s
dry run release (linux-x86_64, ubuntu-latest)	1m 25s
	35m 3s

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