Removed spaces from top-level directory names.

Spaces tend to cause annoyances in a Unix-style shell environment.
This change fixes that.

91_Train/python/README.md

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+Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
+
+Conversion to [Python](https://www.python.org/about/)

91_Train/python/train.py

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+#!/usr/bin/env python3
+# TRAIN
+#
+# Converted from BASIC to Python by Trevor Hobson
+
+import random
+
+
+def play_game():
+    """Play one round of the game"""
+    car_speed = random.randint(40, 65)
+    time_difference = random.randint(5, 20)
+    train_speed = random.randint(20, 39)
+    print("\nA car travelling", car_speed, "MPH can make a certain trip in")
+    print(time_difference, "hours less than a train travelling at", train_speed, "MPH")
+    time_answer = 0
+    while time_answer == 0:
+        try:
+            time_answer = float(input("How long does the trip take by car "))
+        except ValueError:
+            print("Please enter a number.")
+    car_time = time_difference*train_speed/(car_speed-train_speed)
+    error_percent = int(abs((car_time-time_answer)*100/time_answer)+.5)
+    if error_percent > 5:
+        print("Sorry. You were off by", error_percent, "percent.")
+        print("Correct answer is", round(car_time, 6), "hours")
+    else:
+        print("Good! Answer within", error_percent, "percent.")
+
+
+def main():
+    print(" " * 33 + "TRAIN")
+    print(" " * 15 + "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY\n")
+    print("Time - speed distance exercise")
+
+    keep_playing = True
+    while keep_playing:
+        play_game()
+        keep_playing = input(
+            "\nAnother problem (yes or no) ").lower().startswith("y")
+
+
+if __name__ == "__main__":
+    main()