add code documentation

Tables.py

@@ -1,3 +1,5 @@
+"""This script containing the table definitions for the database."""
+
 from DbSetup import Base
 from sqlalchemy import Column, Date, Integer, Float, String
 
@@ -14,8 +16,6 @@ class Toots(Base):
     userName = Column(String(255))
     userId = Column(String(255))
 
-
-
 class SentimentCounts(Base):
     __tablename__ = 'SentimentCounts'
     __table_args__ = {'extend_existing': True}