update example doxygen

docs/html/_behaviours_8cpp.html

docs/html/_behaviours_8hpp.html

docs/html/_behaviours_8hpp_source.html

docs/html/_button_8cpp.html

docs/html/_button_8hpp.html

docs/html/_button_8hpp_source.html

docs/html/_button_behaviours_8cpp.html

docs/html/_button_behaviours_8hpp.html

docs/html/_button_behaviours_8hpp_source.html

docs/html/_comms_behaviours_8cpp.html

docs/html/_comms_behaviours_8hpp.html

docs/html/_comms_behaviours_8hpp_source.html

docs/html/_l_e_d_behaviours_8cpp.html

docs/html/_l_e_d_behaviours_8hpp.html

docs/html/_l_e_d_behaviours_8hpp_source.html

docs/html/_name_dictionary_8cpp.html

docs/html/_name_dictionary_8hpp.html

docs/html/_name_dictionary_8hpp_source.html

docs/html/_potentiometer_8cpp.html

docs/html/_potentiometer_8hpp.html