Some directories had a capital in their name [fixed]. Added a recursive factorial algorithm. (#763)

* Renaming directories
* Adding a recursive factorial algorithm

maths/FindMax.py

@@ -0,0 +1,14 @@
+# NguyenU
+
+def find_max(nums):
+    max = nums[0]
+    for x in nums:
+      if x > max:
+        max = x
+    print(max)
+
+def main():
+  find_max([2, 4, 9, 7, 19, 94, 5])
+
+if __name__ == '__main__':
+  main()