Zserio v2.1.0-pre3

This is the third beta version of the zserio v2.1.0 which contains support of templates in HTML generator.

The pre-release contains several fixes in HTML generator as well.

Fixes

#242 - HTML generator produces faulty links for instantiate types
#243 - HTML generator ignores documentation comments for functions
#245 - HTML generator ignores top level package set by command line
#246 - HTML generator does not update package overview

Improvements

#156 - Extend documentation emitter to show template
#247 - HTML generator ignores multiple documentation comments
#249 - Markdown documentation comment doesn't work when indented
#251 - HTML generator does not integrate generated SVG DB diagrams