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

* Renaming directories
* Adding a recursive factorial algorithm

maths/FindMin.py

@@ -0,0 +1,12 @@
+def main():
+    def findMin(x):
+        minNum = x[0]
+        for i in x:
+            if minNum > i:
+                minNum = i
+        return minNum
+
+    print(findMin([0,1,2,3,4,5,-3,24,-56])) # = -56
+
+if __name__ == '__main__':
+    main()