Update README with the new files (#1)

Reviewed-on: #1

README.md

@@ -5,17 +5,23 @@ This is a small test area how to edit SQLite databases and update some values ac
 ## Files
 
 ```
+├── requirements.txt
 ├── script.sh
 ├── sql
 │   ├── create_db.sql
 │   ├── insert_data.sql
-│   └── show_all.sql
-└── test.db
+│   ├── show_all.sql
+│   ├── show_sg.sql
+│   └── update_sg.sql
+├── start.py
 ```
 
-- `script.sh`: Small script to executre commands inside the sql-files (see `sql/`)
+- `requirements.txt`: requirements for the python script
+- `script.sh`: Small & ugly script to execute commands inside the sql-files (see `sql/`)
 - `sql/`
     - `create_db.sql`: creates the small test database
     - `insert_data.sql`: insert some fictive test values into the database
     - `show_all.sql`: Shows all the data inside the database from table customers
-- `test.db`: Not in this repository as it will be created
+    - `show_sg.sql`: Show all the data which are from St. Gallen (and will get updated)
+    - `update_sg.sql`: Update the entries so the city is written consistent
+- `start.py`: small python helper script