Update libs.md

libs.md

@@ -1 +1,23 @@
-Angular Material: https://material.angular.io/
+# Libraries Used in This Project
+
+## Backend
+
+1. **Flask**
+   - Homepage: [https://flask.palletsprojects.com/](https://flask.palletsprojects.com/)
+
+2. **SQLAlchemy**
+   - Homepage: [https://www.sqlalchemy.org/](https://www.sqlalchemy.org/)
+
+3. **PostGIS**
+   - Homepage: [https://postgis.net/](https://postgis.net/)
+
+## Frontend
+
+1. **Leaflet**
+   - Homepage: [https://leafletjs.com/](https://leafletjs.com/)
+
+2. **Angular**
+   - Homepage: [https://d3js.org/](https://d3js.org/)
+
+3. **React**
+   - Homepage: [https://reactjs.org/](https://reactjs.org/)