Add release notes for 10.14.0 and 10.15.0 (#276)
Add release notes for 10.14.0 and 10.15.0 (#276)

* add release nodes for 10.14.0 and 10.15.0

* add release notes 10.15.0

* fix typos

* fix typo

* refrase sentance

* rewrite with feedback from Dans

* add discover provider pr to change log

uber-node/ringpop-node,esatterwhite/skyring,uber/ringpop-node,esatterwhite/skyring,uber-node/ringpop-node,uber/ringpop,uber/ringpop-node