docs: add release doc

Author: drlkf

README.md

@@ -1,4 +1,10 @@
 # fused-effects-logger
+
 A logger effect for the
 [`fused-effects`](https://github.com/fused-effects/fused-effects) library, based
 on the [`monad-logger`](https://github.com/snoyberg/monad-logger) API.
+
+# Contributing
+
+Please follow the process describe in [`RELEASE.md`](./RELEASE.md) to release
+new versions to Hackage.

RELEASE.md

@@ -0,0 +1,14 @@
+# Release process
+
+This package uses
+[`semantic-release`](https://github.com/semantic-release/semantic-release) to
+manage versions. In order to release, you need to follow these steps:
+
+1. Push your commit(s) to the default branch, or merge your pull request
+2. In the CI pipeline, there will be a workflow called `Semantic release`: you
+   should wait until this workflow has succeeded; it will produce a new tag and
+   a release commit with the correct changelog
+3. On your local machine, pull the commit and tag and run the command `stack
+   upload .`; if you want a preview without publishing a definitive version to
+   Hackage, you can use `stack upload --candidate .` to upload a
+   [candidate](https://hackage.haskell.org/upload#candidates)