Update README and CHANGELOG for Cranko migration

CHANGELOG.md

@@ -0,0 +1,8 @@
+# See elsewhere for changelog
+
+This project’s release notes are curated from the Git history of its main
+branch. You can find them by looking at [the version of this file on the
+`release` branch][branch] or the [GitHub release history][gh-releases].
+
+[branch]: https://github.com/WorldWideTelescope/toasty/blob/release/CHANGELOG.md
+[gh-releases]: https://github.com/WorldWideTelescope/toasty/releases

CHANGES.md

@@ -1,45 +0,0 @@
-# 0.3.1 (2020 Sep 21)
-
-- If PIL is missing colorspace support, don't crash with an error, but provide a
-  big warning.
-- Add a `plate-carree-galactic` projection type, for equirectangular images in
-  Galactic coordinates.
-- In the plate carrée image samplers, round nearest-neighbor pixel coordinates
-  rather than truncating the fractional component. This should fix a half-pixel
-  offset in TOASTed maps.
-- Remove some old functionalities that are currently going unused, and not
-  expected to become needed in the future.
-
-# 0.3.0 (2020 Sep 18)
-
-- Attempt to properly categorize Cython as a build-time-only dependency. We don't
-  need it at runtime.
-
-# 0.2.0 (2020 Sep 17)
-
-- Add a first cut at support for OpenEXR images. This may evolve since it might
-  be valuable to take more advantage of OpenEXR's support for high-dynamic-range
-  imagery.
-- Add cool progress reporting for tiling and cascading!
-- Fix installation on Windows (hopefully).
-- Add a new `make-thumbnail` utility command.
-- Add `--placeholder-thumbnail` to some tiling commands to avoid the thumbnailing
-  step, which can be very slow and memory-intensive for huge input images.
-- Internal cleanups.
-
-# 0.1.0 (2020 Sep 15)
-
-- Massive rebuild of just about everything about the package.
-- New CLI tool, `toasty`.
-
-# 0.0.3 (2019 Aug 3)
-
-- Attempt to fix ReadTheDocs build.
-- Better metadata for PyPI.
-- Exercise workflow documented in `RELEASE_PROCESS.md`.
-
-# 0.0.2 (2019 Aug 3)
-
-- Revamp packaging infrastructure
-- Stub out some docs
-- Include changes contributed by Clara Brasseur / STScI

README.md

@@ -57,10 +57,11 @@ use a standard workflow with issues and pull requests. All participants in
 
 ## Release History
 
-Releases of [toasty] are logged in the file [CHANGES.md](./CHANGES.md), as
-well as release listings maintained by
-[GitHub](https://github.com/WorldWideTelescope/toasty/releases) and
-[PyPI](https://pypi.org/project/toasty/#history).
+Releases of [toasty] are logged in the file
+[CHANGELOG.md](https://github.com/WorldWideTelescope/toasty/blob/release/CHANGELOG.md)
+on the `release` branch of this repository, as well as release listings
+maintained by [GitHub](https://github.com/WorldWideTelescope/toasty/releases)
+and [PyPI](https://pypi.org/project/toasty/#history).
 
 
 ## Dependencies