chore: set up a devcontainer config for easier contributions (#87)

Author: morgante

.devcontainer/devcontainer.json

@@ -0,0 +1,9 @@
+{
+	"name": "Default Linux Universal",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/universal:2-linux",
+	"features": {
+	},
+
+	"onCreateCommand": "bash ./ops/install.sh"
+}

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+ - package-ecosystem: "devcontainers"
+   directory: "/"
+   schedule:
+     interval: weekly

ops/install.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# This script is meant for setting up a working devcontainer
+
+# Install the Grit CLI
+curl -fsSL https://docs.grit.io/install | bash
+source ~/.bashrc
+