Update README.md

Author: yanglbme

solution/0000-0099/0001.Two Sum/README.md

@@ -321,6 +321,22 @@ class Solution {
 }
 ```
 
+#### Nim
+
+```nim
+import std/enumerate
+import std/tables
+
+proc twoSum(nums: seq[int], target: int): seq[int] =
+  var d = initTable[int, int]()
+  for i, x in nums.pairs():
+    let y = target - x
+    if d.hasKey(y):
+      return @[d[y], i]
+    d[x] = i
+  return @[]
+```
+
 #### Cangjie
 
 ```cj
@@ -338,22 +354,6 @@ class Solution {
 }
 ```
 
-#### Nim
-
-```nim
-import std/enumerate
-import std/tables
-
-proc twoSum(nums: seq[int], target: int): seq[int] =
-  var d = initTable[int, int]()
-  for i, x in nums.pairs():
-    let y = target - x
-    if d.hasKey(y):
-      return @[d[y], i]
-    d[x] = i
-  return @[]
-```
-
 <!-- tabs:end -->
 
 <!-- solution:end -->