Adds documentation, some minor cleanup

main.py

@@ -1,18 +1,28 @@
 from flask import request, Flask, render_template
 
+# Flask server boilerplate
 app = Flask(__name__)
 app.debug=True
-app.config['SECRET_KEY'] = 'Thisisasecret!'
+app.config['SECRET_KEY'] = 'Thisisasecret!' # Feel free to change this TODO: Make this change itself each boot 
 
+# Values used to track the train's throttle and direction.
 throttle: float = 0.0
 direction: int = 0
 
 @app.route('/')
 def index():
+    """
+    Renders the webpage if you view the IP address and port
+    """
     return render_template('index.html')
 
 @app.route("/data", methods=["POST"])
-def data():
+def data() -> str:
+    """
+    Used by the webpage to set the throttle and/or travel direction
+
+    :return: Always returns "Success" (200)
+    """
     global throttle, direction
     print(request.json)
 
@@ -26,14 +36,17 @@ def data():
     return "Success"
 
 @app.route("/control", methods=["GET"])
-def control():
-    print(request.data)
+def control() -> dict[str, str]:
+    """
+    Used by the train controller to determine what the throttle and direction currently are
 
+    :return: A dictionary containing the throttle and direction values, will be jsonified
+    """
     return {
         "throttle": throttle,
         "direction": direction
     }
 
-
 if __name__=="__main__":
-    app.run(host="10.0.2.148", port=2093)
+    # Listen on all interfaces on port 2093
+    app.run(host="0.0.0.0", port=2093)