Ajout d'un exemple simple sur les observables.

src/app/observables-example/observables-example.module.ts

@@ -0,0 +1,21 @@
+import {NgModule} from '@angular/core';
+import {CommonModule} from '@angular/common';
+import {ObservablesExampleComponent} from "./observables-example.component";
+import {SimpleObservableExempleComponent} from "./simple-observable-exemple/simple-observable-exemple.component";
+import {CoreModule} from "../core/core.module";
+
+@NgModule({
+    declarations: [
+        ObservablesExampleComponent,
+        SimpleObservableExempleComponent
+    ],
+    imports: [
+        CommonModule,
+        CoreModule
+    ],
+    exports: [
+        ObservablesExampleComponent
+    ]
+})
+export class ObservablesExampleModule {
+}