Edit readme

README.md

@@ -18,11 +18,12 @@ The default version of ImageMagick installed on Heroku:22/24 dynos (version 7.xx
 
 This [Heroku buildpack](https://devcenter.heroku.com/articles/buildpacks) includes a version of ImageMagick with **HEIF/HEIC/AVIF/WebP support**.
 
-Versions: 
-  - ImageMagick 7.1.1-35
-  - libde265 1.0.15
-  - libwebp 1.4.0
-  - libheif 1.18.1
+| Software      | Version     |
+|---------------|-------------|
+| ImageMagick   | 7.1.1-35    |
+| libde265      | 1.0.15      |
+| libwebp       | 1.4.0       |
+| libheif       | 1.18.1      |
 
 The binaries in this repository were built using Heroku Docker images with the [**build.sh**](./build.sh) script. The resulting tar files are stored in the `/build` directory and utilized by the [compile script](./bin/compile).
 
@@ -32,8 +33,19 @@ It's suggested that you use the latest version of the release buildpack.
 To ensure the newer version of ImageMagick is found in the `$PATH` and installed first, make sure this buildpack is added to the top of the buildpack list (index 1).
 You can set it using the heroku-cli.
 
+For linux/ubuntu:
 ```bash
-heroku buildpacks:set https://github.com/yespark/heroku-imagemagick-buildpack --index 1 -a your-app-name
+curl https://cli-assets.heroku.com/install-ubuntu.sh | sh
+```
+
+For mac:
+```bash
+brew tap heroku/brew && brew install heroku
+```
+
+```bash
+heroku login
+heroku buildpacks:set https://github.com/yespark/heroku-imagemagick-buildpack#rework … --index 1 -a heroku-imagemagick-dummy
 ```
 
 # Notes