fix badge for workflow in readme.md

.github/workflows/ci-linter-backend.yaml

@@ -0,0 +1,19 @@
+name: UGent-3-backend-linter
+run-name: ${{ github.actor }} is running backend linter 🚀
+on: [pull_request]
+jobs:
+  Backend-tests:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+          cache: 'pip'
+
+      - name: Run linting
+        working-directory: ./backend
+        run: find . -type f -name "*.py" | xargs pylint 
+

.github/workflows/ci-linter-frontend.yaml

@@ -0,0 +1,27 @@
+name: UGent-3-frontend-linter
+run-name: ${{ github.actor }} is running frontend linter 🚀
+on: [pull_request]
+jobs:
+  Frontend-tests:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: ~/.npm
+          key: npm-${{ hashFiles('package-lock.json') }}
+          restore-keys: npm-
+
+      - name: Install dependencies
+        working-directory: ./frontend
+        run: npm i eslint
+
+      - name: Run linting
+        working-directory: ./frontend
+        run: npm run lint
+

.github/workflows/ci-test-backend.yaml

@@ -0,0 +1,24 @@
+name: UGent-3-backend-test
+run-name: ${{ github.actor }} is running backend tests 🚀
+on: [pull_request]
+jobs:
+  Backend-tests:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+          cache: 'pip'
+
+      - name: Install dependencies
+        working-directory: ./backend
+        run: pip3 install -r requirements.txt && pip3 install -r dev-requirements.txt
+
+      - name: Running tests
+        working-directory: ./backend
+        run: bash ./run_tests.sh
+
+

.github/workflows/ci-test-frontend.yaml

@@ -0,0 +1,35 @@
+name: UGent-3-frontend-test
+run-name: ${{ github.actor }} is running frontend tests 🚀
+on: [pull_request]
+jobs:
+  Frontend-tests:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: ~/.npm
+          key: npm-${{ hashFiles('package-lock.json') }}
+          restore-keys: npm-
+
+      - name: Install dependencies
+        working-directory: ./frontend
+        run: npm ci
+
+      - name: Build
+        working-directory: ./frontend
+        run: npm run build
+
+      - name: Preview Web App
+        working-directory: ./frontend
+        run: npm run preview &
+
+      - name: Running tests
+        working-directory: ./frontend
+        run: npm test
+

backend/README.md

@@ -1,4 +1,6 @@
 # Project pigeonhole backend
+![tests](https://github.com/SELab-2/UGent-3/actions/workflows/ci-test-backend.yaml/badge.svg)
+![linter](https://github.com/SELab-2/UGent-3/actions/workflows/ci-linter-backend.yaml/badge.svg)
 ## Prerequisites
 **1. Clone the repo**
    ```sh