docs: Adding command for installing on linux, but changing the terms to be more than python

docs/developer-setup.md

@@ -57,8 +57,13 @@ Linux users can follow the instructions for their distro on that site. For Macos
 ```shell
 # Ensure that xcode build tools are installed
 xcode-select --install
-# Ensure required libraries for python
+
+# Ensure required libraries for running a sandbox locally
+# for mac
 brew install openssl readline sqlite3 xz zlib bash gpg
+
+# For linux
+sudo apt-get install openssl readline sqlite3 xz zlib bash gnupg
 ```
 ### Step 2.1: Macos Only: you're gonna need a better shell