README: Add Doxygen as dependency

qxmpp-project / qxmpp

Cross-platform C++ XMPP client and server library

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Closed melvo closed 1 year ago

melvo commented 1 year ago

PR check list:

[x] Document your code
[x] Add \since QXmpp 1.X, QXMPP_EXPORT
[x] Fix doxygen warnings (see log when building with -DBUILD_DOCUMENTATION=ON)
[x] Update doc/doap.xml
[x] Add unit tests
[x] Format the code: Run clang-format -i src/<edited-file(s)> tests/<edited-file(s)>