docs: add note on deleting the changelog

docs/source/usage/cocogitto.rst

@@ -20,8 +20,8 @@ Setting-Up Cocogitto
 ####################
 This repository enables a few of cocogitto's optional features (see ``cog.toml``).
 One is that the changelog is generated via GitHub's CI relative to the first tag called "v0.0.0". You
-therefore need to add this tag to your GitHub repository, either on GitHub or by pushing the tag from
-your local repository, e.g.
+therefore need to delete any existing ``CHANGELOG.md`` and then add this tag to your GitHub repository,
+either on GitHub or by pushing the tag from your local repository, e.g.
 
 a. ``git tag -a v0.0.0 -m "init repo"``,
 b. ``git push --tags``.

docs/source/usage/getstart.rst

@@ -46,10 +46,11 @@ Necessary first steps:
 Necessary second steps:
 #######################
 
-#. Create and push the 0th version tag to the repository:
+#. Create the 0th version tag in the remote repository:
     a. ``git tag -a v0.0.0 -m "init repo"``,
     b. ``git push --tags``.
 
+#. Delete GoodSciProjTemplate's CHANGELOG.md ``rm CHANGELOG.md``.
 #. Make the project name yours instead of "GoodSciProjTemplate".
 #. Make the citation and liscence refer to you instead of me.
 #. Corect the repository name and its owner for GitHub (e.g. in the CI.yaml).