Cross-checked and completed documentation.

osm-3s_testing/extract_wiki_comments.awk

osm-3s_testing/extract_wiki_comments.sh

src/overpass_api/statements/aggregators.h

src/overpass_api/statements/around.cc

src/overpass_api/statements/binary_operators.h

src/overpass_api/statements/compare.h

src/overpass_api/statements/complete.h

src/overpass_api/statements/convert.h

src/overpass_api/statements/filter.h

src/overpass_api/statements/for.h

src/overpass_api/statements/geometry_endomorphisms.h

src/overpass_api/statements/if.h

src/overpass_api/statements/localize.h

src/overpass_api/statements/make.h

src/overpass_api/statements/print.h

src/overpass_api/statements/query.h

src/overpass_api/statements/retro.h

src/overpass_api/statements/set_list_operators.h

src/overpass_api/statements/string_endomorphisms.h

src/overpass_api/statements/tag_value.h