📝 Update installation instructions in CHEATSHEET.md

yq/CHEATSHEET.md

@@ -8,3 +8,14 @@ repo: https://github.com/mikefarah/yq
 description: yq is a portable command-line YAML, JSON, XML, CSV, TOML, HCL and properties processor
 ```
 
+## Install
+
+Install via brew:
+```shell
+brew install yq
+```
+
+Install via go:
+```shell
+go install github.com/mikefarah/yq/v4@latest
+```