On PR

Add a documentation for op decomposition #1548

Job	Run time
build-and-test / build-image	9s
pre-commit / pre-commit	33s
macos-build / build (macos-latest, clang, clang++, Release, OFF)	2h 3m 46s
spdx / check-spdx-headers	4s
build-and-test / Build and test tt-explorer (ubuntu-latest, OFF, run)	7m 37s
build-and-test / Build tt-mlir (ubuntu-latest, OFF, run)	54m 11s
build-and-test / Build tt-mlir (ubuntu-latest, ON, perf)	42m 44s
build-and-test / run-ttrt-tests (n150, ON, perf)	9m 39s
build-and-test / run-tests (n150, OFF, run, --non-zero)	2m 37s
build-and-test / run-tests (n150, ON, perf)	6m 29s
build-and-test / run-tests (n300, OFF, run, --non-zero)	4m 20s
build-and-test / run-tests (n300, ON, perf)	11m 10s
	4h 23m 19s

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