Add render.yaml for deployment

Author: SHIBINSHA02

leetcode_backend/render.yaml

@@ -0,0 +1,15 @@
+services:
+  - type: web
+    name: leetcode-backend
+    env: python
+    buildCommand: pip install -r requirements.txt
+    startCommand: gunicorn backend.wsgi:application --bind 0.0.0.0:$PORT
+    envVars:
+      - key: DJANGO_SETTINGS_MODULE
+        value: backend.settings
+      - key: PYTHON_VERSION
+        value: 3.12.3
+      - key: SECRET_KEY
+        value: your-secret-key-here
+      - key: DEBUG
+        value: False