chore: add changelog, ToC

README/README.md

@@ -2,19 +2,25 @@
 
 > description
 
+- [repo name](#repo-name)
+  - [System requirements](#system-requirements)
+  - [Development](#development)
+  - [Building/Running](#buildingrunning)
+    - [ENVIRONMENT NAME](#environment-name)
+  - [Contributing](#contributing)
+  - [Changelog](#changelog)
+  - [License](#license)
+
+
 ## System requirements
 
 ## Development
 
 steps here
 
-## Building
+## Building/Running
 
-### ENVIRONMENT 1
-
-steps here
-
-### MORE ENVIRONMENTS IF NEEDED
+### ENVIRONMENT NAME
 
 steps here
 
@@ -22,6 +28,11 @@ steps here
 
 Add contributing guidelines
 
+## Changelog
+
+- generate the changelog with `./changelog.sh` or `bash /path/to/changelog.sh` (requires bash)
+- See the [Changelog](/CHANGELOG.md)
+
 ## License
 
 REPO-NAME is licensed under the LICENSE-NAME. The full license text is included in the [LICENSE](LICENSE.md) file in this repository. Tldr legal have a [great summary](https://tldrlegal.com/license/LICENSE-NAME) of the license if you're interested.

changelog.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+git log --date=local --format="Commit: "%h%n"Author: "%cn%n%ad%n"Commit subject: "%n%s%n > CHANGELOG