update contributing docs with release checklist

Author: bollwyvl

CONTRIBUTING.md

@@ -70,17 +70,26 @@ doit release
 This will recreate the `test` environment with the specified lockfile, and
 repeat all the steps.
 
-### Releasing
-
-- ensure `VERSION` has been increased appropriately
-- ensure `HISTORY.ipynb` is up-to-date
-- (usually) grab the `dist` assets from CI, unpack into `./dist`
-- make a GitHub release, adding the `.tar.gz`, `.whl`, and `SHA256SUMS`
-- upload to PyPI
-
+## Releasing
+
+- [ ] merge all outstanding PRs
+- [ ] start a release issue with a checklist (maybe like this one)
+- [ ] ensure `VERSION` has been increased appropriately
+- [ ] ensure the `HISTORY.ipynb` is up-to-date
+- [ ] validate on binder
+- [ ] validate on ReadTheDocs
+- [ ] wait for a successful build of `master`
+- [ ] download the `dist` archive and unpack somewhere (maybe a fresh `dist`)
+- [ ] create a new release through the GitHub UI
+  - [ ] paste in the relevant `HISTORY` entries
+  - [ ] upload the artifacts
+- [ ] actually upload to pypi.org
   ```bash
   doit publish
   ```
-
-- do a post-mortem issue
-- bump `VERSION` to a working status
+- [ ] postmortem
+  - [ ] handle `conda-forge` feedstock tasks
+  - [ ] validate on binder via simplest-possible gists
+  - [ ] activate the version on ReadTheDocs
+  - [ ] bump `VERSION` to next development version
+  - [ ] update release procedures

package.json

@@ -7,7 +7,7 @@
     "singleQuote": true
   },
   "devDependencies": {
-    "prettier": "^2.1.2"
+    "prettier": "^2.5.1"
   },
   "scripts": {
     "prettier": "prettier --write --list-different \"./*.{json,md,yml}\" \"{.github,.binder,docs}/**/*.{json,md,yml,css}\""

yarn.lock

@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-prettier@^2.1.2:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.2.0.tgz#8a03c7777883b29b37fb2c4348c66a78e980418b"
-  integrity sha512-yYerpkvseM4iKD/BXLYUkQV5aKt4tQPqaGW6EsZjzyu0r7sVZZNPJW4Y8MyKmicp6t42XUPcBVA+H6sB3gqndw==
+prettier@^2.5.1:
+  version "2.5.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.5.1.tgz#fff75fa9d519c54cf0fce328c1017d94546bc56a"
+  integrity sha512-vBZcPRUR5MZJwoyi3ZoyQlc1rXeEck8KgeC9AwwOn+exuxLxq5toTRDTSaVrXHxelDMHy9zlicw8u66yxoSUFg==