Update the release process

- Drop the custom made tarball: We now rely on [signed git tags](https://gitlab.archlinux.org/archlinux/packaging/packages/archlinux-contrib/-/commit/50905be547cd72eb1bcd1efab5b988e00781b883) for the package, which is more straightforward and transparent. IMO there's no need to keep creating this extra tarball.

- Switch to `gh`: `hub` throws an error (not sure if it's broken or expects something missing)

- Document the release process in the README

Author: Antiz96

Makefile

@@ -44,10 +44,7 @@ tag:
 
 .PHONY: release
 release:
-	mkdir -p releases
-	git archive --prefix=${REPO}-${TAG}/ -o releases/${REPO}-${TAG}.tar.gz ${TAG};
-	gpg --detach-sign -o releases/${REPO}-${TAG}.tar.gz.sig releases/${REPO}-${TAG}.tar.gz
-	hub release create -m "Release: ${TAG}" -a releases/${REPO}-${TAG}.tar.gz.sig -a releases/${REPO}-${TAG}.tar.gz ${TAG}
+	gh release create --generate-notes $(shell date +%Y%m%d)
 
 check: check-bash check-python
 

README.md

@@ -7,9 +7,16 @@ years so they can be curated, cleaned up and maybe become part of the `devtools`
 package.
 
 ### Contribution guidelines
+
 - Some documentation is needed. This can be comments in the top of the file or
   a traditional help command.
 
 - One ACK for each Pull-Request is needed
 
 - Please add [SPDX license header](https://spdx.org/ids-how)
+
+### Release process
+
+- Create and push a signed git tag: `make tag`
+
+- Create a release with default changelog (requires `gh`): `make release`