added Makefile and app.py

Makefile

@@ -0,0 +1,5 @@
+pipeline:
+	python app.py
+
+setup:
+	pip install -r requirements.txt

app.py

@@ -0,0 +1,13 @@
+from textclassifier import TextClassifier as tc
+
+
+def main():
+    """
+    Main function. Runs the program.
+    :return: None
+    """
+    from_date = input("Enter from date (YYYY-MM-DD): ")
+    to_date = input("Enter to date (YYYY-MM-DD): ")
+    user_name = input("Enter user name: ")
+    text_classifier = tc.TextClassifier(from_date=from_date, to_date=to_date, user_name=user_name, num_tweets=20)
+    text_classifier.run_main_pipeline()