Update comments, set default terminal in container

.devcontainer/devcontainer.json

@@ -1,10 +1,10 @@
 {
 	"name": "Go",
 	"dockerFile": "Dockerfile",
-	"appPort": 9000,
-	"extensions": [
-		"ms-vscode.go"
-	],
+
+	// Specifies a list of ports the container should publish
+	"appPort": [9000],
+
 	"runArgs": [
 		// Comment out the next line to run as root instead. Linux users, 
 		// update Dockerfile with your user's UID/GID if not 1000.
@@ -12,9 +12,20 @@
 
 		"--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined"
 	],
+
+	// Use 'settings' to set *default* container specific settings.json values on container create. 
+	// You can edit these settings after create using File > Preferences > Settings > Remote.
 	"settings": { 
+		"terminal.integrated.shell.linux": "/bin/bash",
 		"go.gopath": "/go",
 		"go.inferGopath": true,
 		"go.useLanguageServer": true
-	}
+	},
+
+	// Uncomment the next line to run commands after the container is created.
+	// "postCreateCommand": "go version",
+
+	"extensions": [
+		"ms-vscode.go"
+	]
 }