Update page Title for SEO.

frontend/src/app/components/about/about.component.ts

@@ -1,5 +1,6 @@
 import { Component, OnInit } from '@angular/core';
 import { WebsocketService } from '../../services/websocket.service';
+import { SeoService } from 'src/app/services/seo.service';
 
 @Component({
   selector: 'app-about',
@@ -10,9 +11,11 @@ export class AboutComponent implements OnInit {
 
   constructor(
     private websocketService: WebsocketService,
+    private seoService: SeoService,
   ) { }
 
   ngOnInit() {
+    this.seoService.setTitle('Contributors');
     this.websocketService.want(['blocks']);
   }