Standardize nim output

Author: stormofice

contents/euclidean_algorithm/code/nim/euclid_algorithm.nim

@@ -24,5 +24,7 @@ func euclid_sub(in1, in2: int): int =
   result = a
 
 when isMainModule:
+  echo "[#]\nModulus-based euclidean algorithm result:"
   echo euclid_sub(64 * 67, 64 * 81)
+  echo "[#]\nSubtraction-based euclidean algorithm result:"
   echo euclid_mod(128 * 12, 128 * 77)