Adds curl examples to Http API docs
Adds curl examples to Http API docs

Adds an example of each request.
Still missing desc of metrics/find response.
Also, unclear where the tspec can be used
except for with /render.

raintank/metrictank,raintank/raintank-metric,raintank/metrictank,raintank/metrictank,raintank/metrictank,replay/metrictank,replay/metrictank,replay/metrictank,raintank/raintank-metric,raintank/raintank-metric,replay/metrictank