Add about page

prisma/schema.prisma

@@ -524,6 +524,15 @@ model TermsOfService {
   version  Int    @default(autoincrement())
 }
 
+model About {
+  id        String   @id @default(cuid())
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  markdown String
+  version  Int    @default(autoincrement())
+}
+
 model User {
   id            String    @id
   name          String