Merged PR 61: Fix minor logic errors in main script

This PR fixes some minor issues that I found in the main.py script. Namely:

1. The first observation was always all zeroes when using a generic agent. This is because the `update_environment_obs()` method is not called automatically and is only called by `env.reset()`.
2. The config yaml is never closed as the close function of the file reader was only referenced but never called.

Related work items: #1441

src/primaite/main.py

@@ -25,6 +25,7 @@ from primaite.transactions.transactions_to_file import write_transaction_to_file
 def run_generic():
     """Run against a generic agent."""
     for episode in range(0, config_values.num_episodes):
+        env.reset()
         for step in range(0, config_values.num_steps):
             # Send the observation space to the agent to get an action
             # TEMP - random action for now
@@ -42,7 +43,6 @@ def run_generic():
             time.sleep(config_values.time_delay / 1000)
 
         # Reset the environment at the end of the episode
-        env.reset()
 
     env.close()
 
@@ -375,7 +375,7 @@ logging.info("Saving transaction logs...")
 
 write_transaction_to_file(transaction_list)
 
-config_file_main.close
+config_file_main.close()
 
 print("Finished")
 logging.info("Finished")