v1.4.1 to not destroy original CString

### Releases v1.4.1

1. Don't need `memmove()`, CString no longer destroyed. Check [All memmove() removed - string no longer destroyed #11](#11)

Author: khoih-prog

README.md

@@ -180,7 +180,7 @@ such as
 request->send(200, textPlainStr, cStr);
 ```
 
-The required HEAP is also about **3 times of the CString size** because of many `unnecessary copies` of the CString in HEAP. Avoid this `unefficient` way.
+The required HEAP is also about **3 times of the CString size** because of many `unnecessary copies` of the CString in HEAP.  Avoid this `unefficient` way.
 
 
 3. To use `CString` without destroying it after sending. Use function