Add missing `else` to guard in docs (#955)

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The code as is has a syntax error.

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docs/basics/controllers.de.md

@@ -48,7 +48,7 @@ struct TodosController: RouteCollection {
     }
 
     func delete(req: Request) async throws -> HTTPStatus {
-        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) {
+        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) else {
             throw Abort(.notFound)
         }
         try await todo.delete(on: req.db)
@@ -65,4 +65,4 @@ Zum Schluss müssen wir der Anwendung unseren Controller bekannt machen. Hierzu
 // [routes.swift]
 
 try app.register(collection: TodosController())
-```
+```

docs/basics/controllers.es.md

@@ -52,7 +52,7 @@ struct TodosController: RouteCollection {
     }
 
     func delete(req: Request) async throws -> HTTPStatus {
-        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) {
+        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) else {
             throw Abort(.notFound)
         }
         try await todo.delete(on: req.db)

docs/basics/controllers.it.md

@@ -52,7 +52,7 @@ struct TodosController: RouteCollection {
     }
 
     func delete(req: Request) async throws -> HTTPStatus {
-        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) {
+        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) else {
             throw Abort(.notFound)
         }
         try await todo.delete(on: req.db)

docs/basics/controllers.ja.md

@@ -52,7 +52,7 @@ struct TodosController: RouteCollection {
     }
 
     func delete(req: Request) async throws -> HTTPStatus {
-        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) {
+        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) else {
             throw Abort(.notFound)
         }
         try await todo.delete(on: req.db)

docs/basics/controllers.md

@@ -52,7 +52,7 @@ struct TodosController: RouteCollection {
     }
 
     func delete(req: Request) async throws -> HTTPStatus {
-        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) {
+        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) else {
             throw Abort(.notFound)
         }
         try await todo.delete(on: req.db)

docs/basics/controllers.zh.md

@@ -53,7 +53,7 @@ struct TodosController: RouteCollection {
     }
 
     func delete(req: Request) async throws -> HTTPStatus {
-        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) {
+        guard let todo = try await Todo.find(req.parameters.get("id"), on: req.db) else {
             throw Abort(.notFound)
         }
         try await todo.delete(on: req.db)