update contribution guides (more visibility to forums)

gcontini

2020-10-09 ea3f019f6061d8fd67a9b71601605a823cedf050

 test/functional/CMakeLists.txt

@@ -40,7 +40,6 @@
 test_signature_verifier
 licensecc_static
 license_generator_snippet
 ${EXTERNAL_LIBS}
 Boost::unit_test_framework 
 Boost::filesystem
 Boost::system