added more letter patterns

Author: StarkEdward

O - Shape.py

@@ -0,0 +1,9 @@
+# Python Pattern Program Printing Stars in "O" Shape
+
+for r in range(7):
+    for c in range(7):
+        if ((c ==0 or c==6) and (r>0 and r <6)) or ((r ==0 or r == 6) and (c > 0 and c< 6)) :
+            print("*", end=" ")
+        else:
+            print(end="  ")
+    print()