docs: update changelog

docs: update changelog for v0.2.6

docs: update changelog for v0.2.5

docs: update changelog for v0.2.4

docs: update changelog for v0.2.3

Updating README download links

Update README.md

Updated changelog.md

Initial commit

Co-authored-by: Jeremy Moseley <jemoseley@microsoft.com>
Co-authored-by: cmcnally <cmcnally@github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>