chore: add build instructions to README

README.md

@@ -17,6 +17,24 @@ The current version performs all actions locally on the current system, but v2 w
 - Format `.env` files and open them in your default editor
 - Export all environments created as separate files
 
+## Installation
+
+You need to have Go 1.25.0 installed.
+
+- Clone the repo:
+
+```
+git clone https://github.com/silicoflare/envy
+```
+
+- Install dependencies and build the binary
+
+```
+make
+```
+
+- Move the `envy` binary in the `dist` directory to PATH
+
 ## Commands
 
 ### envy