Update release.md with citation.cff and conda-forge steps.

RELEASE.md

@@ -2,17 +2,23 @@
 
 ## PyPI
 
-#. Draft a new release on github with a new tag (create on publish) in the style `vMajor.Minor.Patch`, where `Major`, `Minor`, and `Patch` are integers according to semnatic versioning
-#. Use the autogenerated changelog to update `CHANGELOG.md` in main
-#. Copy the modified changelog from the file to the github release draft
-#. Release the new version on github
-#. Approve the release run in the actions tab
-#. Verify that the upload to PyPI succeeded
+1. Draft a new release on github with a new tag (create on publish) in the style `vMajor.Minor.Patch`, where `Major`, `Minor`, and `Patch` are integers according to semnatic versioning
+1. Use the autogenerated changelog to update `CHANGELOG.md` in main
+1. Update the version and release date in `CITATION.cff`
+1. Copy the modified changelog from the file to the github release draft
+1. Release the new version on github
+1. Approve the release run in the actions tab
+1. Verify that the upload to PyPI succeeded
 
 
 ## Conda-forge
 
-#. Do the PyPI release first
-#. Rebase the `conda-forge-release` branch on the latest release
-#. Create a tag with `vMajor.Minor.Patch-cf` at the head of that branch
-#. Update the conda-forge repository with the version and checksum
+1. Do the PyPI release first
+1. Rebase the `conda-forge-release` branch on the latest release
+1. Ensure correct `pyproject.toml`:
+   * State the version explicitly (`version = "1.2.3"` instead of `dynamic = ["version"]`) 
+   * Comment out the `openrpc` dependency
+   * Comment out the section section (including header!) `[tool.setuptools_scm]`
+1. Create a tag with `vMajor.Minor.Patch-cf` at the head of that branch
+1. Update the conda-forge repository with the version and checksum of the tar.gz archive of that tag:
+   * On windows use `certUtil --hashfile pyleco-1.2.3-cf.tar.gz SHA256` (adjust the version) to generate the SHA256 hash