Added gitlab yml and badges

.gitlab-ci.yml

+image: node:latest
+
+stages:
+    - build
+    - test
+
+cache:
+    paths:
+        - node_modules/
+
+install_dependencies:
+    stage: build
+    script:
+        - npm install
+    artifacts:
+        paths:
+            - node_modules/
+
+testing_testing:
+    stage: test
+    script: npm run coverage

README.md

 # Team 61 - Project 2
+[![pipeline](https://gitlab.stud.idi.ntnu.no/it2810-h20/team-61/prosjekt-2/badges/master/pipeline.svg)](https://gitlab.stud.idi.ntnu.no/it2810-h20/team-61/prosjekt-2/-/commits/master)
+[![coverage report](https://gitlab.stud.idi.ntnu.no/it2810-h20/team-61/prosjekt-2/badges/master/coverage.svg)](https://gitlab.stud.idi.ntnu.no/it2810-h20/team-61/prosjekt-2/-/commits/master)
+
 **Skrevet av**: Hauk Aleksander Olaussen, Noran Baskaran og Oskar Gabrielsen
 
 ## Struktur og kode