Update deploy CI job with missing dependency

.github/workflows/deploy-sdist.yaml

@@ -15,7 +15,9 @@ jobs:
 
       - name: Create sdist
         shell: bash -l {0}
-        run: python -m build --sdist
+        run: |
+          python -m pip install -U build pip
+          python -m build --sdist
 
       - name: Publish package to PyPI
         if: github.event.action == 'published'

RELEASING.md

@@ -3,35 +3,43 @@
 1. checkout main branch
 2. pull from repo
 3. run the unittests
-4. run `loghub`.  Replace <github username> and <previous version> with proper
-   values.  To get the previous version run `git tag` and select the most
-   recent with highest version number.
+4. run `loghub` and update the `CHANGELOG.md` file:
 
-```
-loghub pytroll/pydecorate -u <github username> -st v<previous version> -plg bug "Bugs fixed" -plg enhancement "Features added" -plg documentation "Documentation changes" -plg backwards-incompatibility "Backwards incompatible changes"
-```
+   ```
+   loghub pytroll/pydecorate --token $LOGHUB_GITHUB_TOKEN -st v<previous version> -plg bug "Bugs fixed" -plg enhancement "Features added" -plg documentation "Documentation changes" -plg backwards-incompatibility "Backward incompatible changes" -plg refactor "Refactoring"
+   ```
 
-This command will create a CHANGELOG.temp file which need to be added
-to the top of the CHANGELOG.md file.  The same content is also printed
-to terminal, so that can be copy-pasted, too.  Remember to update also
-the version number to the same given in step 5. Don't forget to commit
-CHANGELOG.md!
+   This uses a `LOGHUB_GITHUB_TOKEN` environment variable. This must be created
+   on GitHub and it is recommended that you add it to your `.bashrc` or
+   `.bash_profile` or equivalent.
 
-5. Create a tag with the new version number, starting with a 'v', eg:
+   This command will create a CHANGELOG.temp file which need to be added
+   to the top of the CHANGLOG.md file.  The same content is also printed
+   to terminal, so that can be copy-pasted, too.  Remember to update also
+   the version number to the same given in step 5. Don't forget to commit
+   CHANGELOG.md!
 
-```
-git tag -a v<new version> -m "Version <new version>"
-```
+5. Create a tag with the new version number, starting with a 'v', eg:
 
-For example if the previous tag was `v0.9.0` and the new release is a
-patch release, do:
+   ```
+   git tag -a v<new version> -m "Version <new version>"
+   ```
 
-```
-git tag -a v0.9.1 -m "Version 0.9.1"
-```
+   For example if the previous tag was `v0.9.0` and the new release is a
+   patch release, do:
 
-See [semver.org](http://semver.org/) on how to write a version number.
+   ```
+   git tag -a v0.9.1 -m "Version 0.9.1"
+   ```
 
+   See [semver.org](http://semver.org/) on how to write a version number.
 
 6. push changes to github `git push --follow-tags`
-7. Verify travis tests passed and deployed sdist and wheel to PyPI
+7. Verify github action unittests passed.
+8. Create a "Release" on GitHub by going to
+   https://github.com/pytroll/pydecorate/releases and clicking "Draft a new release".
+   On the next page enter the newly created tag in the "Tag version" field,
+   "Version X.Y.Z" in the "Release title" field, and paste the markdown from
+   the changelog (the portion under the version section header) in the
+   "Describe this release" box. Finally click "Publish release".
+9. Verify the GitHub actions for deployment succeed and the release is on PyPI.