add docs for the compare.h and printf.h utilities

add web docs for buffer and stream copy

add web documentation for strings

add allocator example

update install instructions for ucx 3.0

add empty sections to features.md

remove deprecated align=center attribute

remove trees from UCX 3.0

fix some typos in UCX 2.1 documentation

update general web documentation structure

add header and footer to list of build dependencies

add missing docs for cxEmptyMap

(0) -300 -100 -12 +12 +100 +300 tip

mercurial