Add documentation references to service units and program help #2497

Job	Run time
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, no)	4m 10s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-1.0)	4m 39s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-0.1)	4m 33s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, no)	4m 48s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-1.0)	4m 41s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-0.1)	5m 3s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, no)	4m 22s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-1.0)	4m 23s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-0.1)	4m 23s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, no)	4m 10s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-1.0)	4m 36s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-0.1)	5m 5s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, no)	4m 23s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-1.0)	4m 16s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-0.1)	5m 20s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, no)	4m 27s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-1.0)	4m 33s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-0.1)	4m 54s
Analyze (python, ubuntu-latest, PYTHON=python3, no, no)	49s
	1h 23m 35s

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