add docs link to --help output

Author: emily-shen

packages/wrangler/src/core/register-yargs-command.ts

@@ -33,7 +33,7 @@ export function createRegisterYargsCommand(
 				if (def.type === "command") {
 					const args = def.args ?? {};
 
-					yargs.options(args);
+					yargs.options(args).epilogue(def.metadata?.epilogue ?? "");
 
 					// Ensure non-array arguments receive a single value
 					for (const [key, opt] of Object.entries(args)) {

packages/wrangler/src/core/types.ts

@@ -28,6 +28,8 @@ export type Metadata = {
 	deprecatedMessage?: string;
 	hidden?: boolean;
 	owner: Teams;
+	/** Prints something at the bottom of the help */
+	epilogue?: string;
 };
 
 export type ArgDefinition = PositionalOptions &

packages/wrangler/src/type-generation/index.ts

@@ -21,6 +21,8 @@ export const typesCommand = createCommand({
 			"📝 Generate types from bindings and module rules in configuration\n",
 		status: "stable",
 		owner: "Workers: Authoring and Testing",
+		epilogue:
+			"📖 Learn more at https://developers.cloudflare.com/workers/languages/typescript/",
 	},
 	positionalArgs: ["path"],
 	args: {