update alg type (#394)

Author: rpmccarter

advanced/user-auth/jwt.mdx

@@ -15,7 +15,7 @@ If you don’t have a dashboard, or if you want to keep your dashboard and docs
     Create a login flow that does the following:
     - Authenticate the user
     - Create a JWT containing the authenticated user's info in the [UserInfo](./sending-data) format
-    - Sign the JWT with the secret, using the ES256 algorithm
+    - Sign the JWT with the secret, using the EdDSA algorithm
     - Create a redirect URL back to your docs, including the JWT as the hash
   </Step>
   <Step title="Configure your User Auth settings">
@@ -46,7 +46,7 @@ import { Request, Response } from 'express';
 
 const TWO_WEEKS_IN_MS = 1000 * 60 * 60 * 24 * 7 * 2;
 
-const signingKey = await jose.importPKCS8(process.env.MINTLIFY_PRIVATE_KEY, 'ES256');
+const signingKey = await jose.importPKCS8(process.env.MINTLIFY_PRIVATE_KEY, 'EdDSA');
 
 export async function handleRequest(req: Request, res: Response) {
   const userInfo = {
@@ -59,7 +59,7 @@ export async function handleRequest(req: Request, res: Response) {
   };
 
   const jwt = await new jose.SignJWT(userInfo)
-    .setProtectedHeader({ alg: 'ES256' })
+    .setProtectedHeader({ alg: 'EdDSA' })
     .setExpirationTime('10 s')
     .sign(signingKey);