Update requirements.txt

requirements.txt

@@ -1,6 +1,6 @@
-pip install Flask 
-pip install Flask-SQLAlchemy 
-pip install Flask-Bootstrap 
-pip install plotly 
-pip install requests 
-pip install opencv-python
+Flask 
+Flask-SQLAlchemy 
+Flask-Bootstrap 
+plotly 
+requests 
+opencv-python