add content component

src/app/header/content/content.component.html

+<p>content works!</p>

src/app/header/content/content.component.spec.ts

+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ContentComponent } from './content.component';
+
+describe('ContentComponent', () => {
+  let component: ContentComponent;
+  let fixture: ComponentFixture<ContentComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ ContentComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(ContentComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/header/content/content.component.ts

+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-content',
+  templateUrl: './content.component.html',
+  styleUrls: ['./content.component.scss']
+})
+export class ContentComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}