update contribution guides (more visibility to forums)

gcontini

2020-10-09 ea3f019f6061d8fd67a9b71601605a823cedf050

 test/library/os/network_test.cpp

@@ -5,7 +5,7 @@

#include <licensecc_properties.h>
#include <licensecc_properties_test.h>
#include "../../../src/library/base/StringUtils.h"
#include "../../../src/library/base/string_utils.h"
#include "../../../src/library/os/network.hpp"
#include "../../../src/library/os/execution_environment.hpp"