Prompt on codespace creation for suggested keys

.devcontainer/auto-quick-setup/devcontainer.json

@@ -1,6 +1,32 @@
 {
 	"name": "theyworkforyou",
+	"secrets": {
+		"TWFY_VOTES_URL": {
+			"description": "URL to the TWFY Votes page"
+		},
+		"MAPIT_URL": {
+			"description": "URL to the MapIt API - defaults to mapit.mysociety.org"
+		},
+		"MAPIT_API_KEY": {
+			"description": "API key for the MapIt API - optional for small numbers of queries"
+		},
+		"DEMOCRACYCLUB_TOKEN": {
+			"description": "API key for the Democracy Club API - only for election postcode lookups"
+		},
+		"RECAPACHA_SITE_KEY": {
+			"description": "Recapacha site key - defaults to generic test key"
+		},
+		"RECAPACHA_SECRET": {
+			"description": "Recapacha secret - defaults to generic test key"
+		},
+		"STRIPE_DONATE_PUBLIC_KEY": {
+			"description": "Stripe donate public key (test key). Only needed for donate page testing."
+		},
+		"STRIPE_DONATE_SECRET_KEY": {
+			"description": "Stripe donate secret key (test key). Only needed for donate page testing."
+		}
 
+	},
 	"dockerComposeFile": "../../docker-compose.yml",
 	"service": "twfy",
 	"workspaceFolder": "/twfy",