Add detailed installation instruction

README.md

@@ -18,9 +18,27 @@ fooboar@forest:~$
 
 ## 🌲 Usage 
 
+Download the newest [release](https://git.wiai.de/fknoch/oink/releases). Then run:
+
 ```sh
 $ chmod +x "/path/to/oink.sh"
-$ alias oink="/path/to/oink.sh"
+```
+
+Add the following lines at the end of your `~\.bashrc`.
+```bash
+# Fooboar
+alias oink="/path/to/oink.sh"
+```
+
+To persist your changes, run:
+
+```bash
+$ . ~/.bashrc
+```
+
+Now Fooboar can talk to you.
+
+```bash
 $ oink Heyho!
 ```