Prepare Version 7.0.0 Release (#335)

* enhancement: remove now unused travis configuration
* enhancement: update references to Angular 11 and angular-archwizard 7.0.0
* fix: github actions badge url

Author: madoar

.travis.yml

@@ -1,5 +1,5 @@
 # Overview angular-archwizard
-[![Build Status](https://travis-ci.com/madoar/angular-archwizard.svg?branch=develop)](https://travis-ci.com/madoar/angular-archwizard)
+[![Build Status](https://github.com/madoar/angular-archwizard/actions/workflows/build.yml/badge.svg?branch=develop)](https://github.com/madoar/angular-archwizard/actions)
 [![Dependency Status](https://david-dm.org/madoar/angular-archwizard.svg)](https://david-dm.org/madoar/angular-archwizard)
 [![Dev-Dependency Status](https://david-dm.org/madoar/angular-archwizard/dev-status.svg)](https://david-dm.org/madoar/angular-archwizard?type=dev)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/039c5be36d8646dfb73972e8679e5021)](https://www.codacy.com/app/marc.arndt/angular-archwizard?utm_source=github.com&utm_medium=referral&utm_content=madoar/angular-archwizard&utm_campaign=Badge_Grade)
@@ -25,7 +25,7 @@ The following table shows which version of `angular-archwizard` has been built w
 | `4.0.0`                      | Angular 7       |
 | `5.0.1`                      | Angular 8       |
 | `6.1.0`                      | Angular 9       |
-| `7.0.0`                      | Angular 10      |
+| `7.0.0`                      | Angular 11      |
 
 ## Gitpod
 `angular-archwizard` can be developed with Gitpod, a free one-click online IDE for GitHub:

README.md

@@ -1,6 +1,6 @@
 {
   "name": "angular-archwizard",
-  "version": "7.0.0-develop",
+  "version": "7.0.0",
   "license": "MIT",
   "description": "An Angular 9+ module containing a wizard component and its supporting components and directives",
   "homepage": "https://github.com/madoar/angular-archwizard",
@@ -18,8 +18,14 @@
   "keywords": [
     "angular",
     "angular9",
+    "angular10",
+    "angular11",
     "angular 9",
+    "angular 10",
+    "angular 11",
     "ng9",
+    "ng10",
+    "ng11",
     "ngx",
     "typescript",
     "wizard",