(maint) release prep v1.4.1

Author: TP Honey

.github_changelog_generator

@@ -0,0 +1 @@
+since-tag=v1.4.0

CHANGELOG.md

@@ -0,0 +1,14 @@
+# Changelog
+
+## [v1.4.1](https://github.com/drone-plugins/drone-slack/tree/v1.4.1) (2021-11-09)
+
+[Full Changelog](https://github.com/drone-plugins/drone-slack/compare/v1.4.0...v1.4.1)
+
+**Closed issues:**
+
+- \[feature\] Allow template to be read from a file [\#122](https://github.com/drone-plugins/drone-slack/issues/122)
+- Newlines not working in message template [\#113](https://github.com/drone-plugins/drone-slack/issues/113)
+
+
+
+\* *This Changelog was automatically generated by [github_changelog_generator](https://github.com/github-changelog-generator/github-changelog-generator)*

README.md

@@ -50,3 +50,25 @@ docker run --rm \
   -e DRONE_TAG=1.0.0 \
   plugins/slack
 ```
+
+## Release Preparation
+
+Run the changelog generator.
+
+```BASH
+docker run -it --rm -v "$(pwd)":/usr/local/src/your-app githubchangeloggenerator/github-changelog-generator -u drone-plugins -p drone-slack -t <secret github token>
+```
+
+You can generate a token by logging into your GitHub account and going to Settings -> Personal access tokens.
+
+Next we tag the PR's with the fixes or enhancements labels. If the PR does not fufil the requirements, do not add a label.
+
+**Before moving on make sure to update the version file `version/version.go && version/version_test.go`.**
+
+Run the changelog generator again with the future version according to semver.
+
+```BASH
+docker run -it --rm -v "$(pwd)":/usr/local/src/your-app githubchangeloggenerator/github-changelog-generator -u drone-plugins -p drone-slack <secret token> --future-release v1.0.0
+```
+
+Create your pull request for the release. Get it merged then tag the release.