Fix sample comments

Author: joelhoisko

Samples/Tutorials/Projections/Chef.ts

@@ -1,6 +1,6 @@
 // Copyright (c) Dolittle. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
-// Sample code for the tutorial at https://dolittle.io/tutorials/getting-started/projections/
+// Sample code for the tutorial at https://dolittle.io/docs/tutorials/projections/
 
 export class Chef {
     constructor(

Samples/Tutorials/Projections/DishCounter.ts

@@ -10,7 +10,7 @@ export class DishCounter {
     numberOfTimesPrepared: number = 0;
 
     @on(DishPrepared, _ => _.keyFromProperty('Dish'))
-    dishPrepared(event: DishPrepared, projectionContext: ProjectionContext) {
+    on(event: DishPrepared, projectionContext: ProjectionContext) {
         this.numberOfTimesPrepared ++;
     }
-}
+}

Samples/Tutorials/Projections/index.ts

@@ -1,6 +1,6 @@
 // Copyright (c) Dolittle. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
-// Sample code for the tutorial at https://dolittle.io/tutorials/projections/typescript/
+// Sample code for the tutorial at https://dolittle.io/docs/tutorials/projections/
 
 import { Client } from '@dolittle/sdk';
 import { TenantId } from '@dolittle/sdk.execution';