add protobuf dependency to readme

6cf37d1b · Stephen D · 3edcd472 · 6cf37d1b
Commit 6cf37d1b authored 1 year ago by Stephen D
--- a/README.md
+++ b/README.md
@@ -4,7 +4,13 @@ Reference CATS/FELINET I-gate/digipeater for the Raspberry Pi. Requires an I-Gat

 ## Building

-To build the software, you will need to install [Rustup](https://rustup.rs/). You'll also need git. After these are installed, restart your terminal, or open a new one. Then run these commands:
+To build the software, you will need to install [Rustup](https://rustup.rs/). You'll also need to install some dependencies:
+
+```bash
+sudo apt install git protobuf-compiler
+```
+
+After these are installed, restart your terminal, or open a new one. Then run these commands:

 ```bash
 git clone https://gitlab.scd31.com/cats/igate