sources.md
sinks.md
PushBuffer -> pushable
rename
move sinks.md
sources go at the start of the pipeline
throughs.md
useful terms
update glossary
1.0.0
add end cb to drain and log
1.1.0
fix emergency bug in take, accep key name in map
error early with defer
pass string to map
collect and reduce
rename to pushable
refactor out pushable into pull-pushable, add values and keys source streams
fix bug in take
tidy