upgrade to Angular 13

Author: jhades

.gitignore

@@ -26,6 +26,7 @@
 !.vscode/extensions.json
 
 # misc
+/.angular/cache
 /.sass-cache
 /connect.lock
 /coverage

README.md

@@ -1,15 +1,21 @@
 
 ## Firebase & AngularFire In Depth 
 
-This repository currently contains the code for the [Firebase & AngularFire In Depth](https://angular-university.io/course/angularfire-course):
+This repository currently contains the code for the [Firebase & AngularFire In Depth](https://angular-university.io/course/angularfire-course).
+
+This course is updated to Angular 13:
 
 ![Firebase & AngularFire In Depth](https://angular-university.s3-us-west-1.amazonaws.com/course-images/firebase-course-1.jpg)
 
 You can find the starting point of the course in the [1-start branch](https://github.com/angular-university/firebase-course/tree/1-start).
 
+This master branch contains the *final version of the course code*, that you can use as a reference if you choose to code along. 
+
+
+
 # Installation pre-requisites
 
-IMPORTANT: Please use Node 14 LST (Long Term Support version).
+IMPORTANT: Please use Node 16 LST (Long Term Support version).
 
 # Installing the Angular CLI
 
@@ -26,7 +32,7 @@ We can install the master branch using the following commands:
     cd firebase-course
     npm ci
 
-Note: We recommend using npm ci, instead of npm install. This will ensure that you use the exact dependency versions set on package-lock.json, unlike npm install which might potentially change those versions.
+Note: **We recommend using npm ci, instead of npm install**. This will ensure that you use the exact dependency versions set on package-lock.json, unlike npm install which might potentially change those versions.
 
 # To run the Development UI Server
 

angular.json

@@ -102,19 +102,6 @@
             "scripts": []
           }
         },
-        "lint": {
-          "builder": "@angular-devkit/build-angular:tslint",
-          "options": {
-            "tsConfig": [
-              "tsconfig.app.json",
-              "tsconfig.spec.json",
-              "e2e/tsconfig.json"
-            ],
-            "exclude": [
-              "**/node_modules/**"
-            ]
-          }
-        },
         "e2e": {
           "builder": "@angular-devkit/build-angular:protractor",
           "options": {