switch to dual license to include MIT license

Author: xgaozoyoe

LICENSE-MIT

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 DelphinusLab
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the “Software”), to deal
+in the Software without restriction, including without limitation the rights  
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies  
+of the Software, and to permit persons to whom the Software is furnished to do  
+so, subject to the following conditions:  
+
+The above copyright notice and this permission notice shall be included in all  
+copies or substantial portions of the Software.  
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,  
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE  
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER  
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,  
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE  
+SOFTWARE.

README.md

@@ -4,8 +4,10 @@
 
 <p align="center">
   <a href="https://github.com/DelphinusLab/zkWasm/blob/main/LICENSE"><img src="https://img.shields.io/badge/license-Apache 2-blue.svg"></a>
+  <a href="https://github.com/DelphinusLab/zkWasm/blob/main/LICENSE-MIT"><img src="https://img.shields.io/badge/license-MIT-blue.svg"></a>
 </p>
 
+
 # Overview：
 
 The mission of DelphiusLab is to provide Web2 developers with a concise toolset to leverage the power of Web3 in their applications. The ZKWASM (ZKSNARK virtual machine that supports Web Assembly) serves as a trustless layer between rich applications running on WASM runtime and smart contracts on chain.