Add code repository mirrors

diff --git a/README.md b/README.md
index d541e25b8a8f01d52ff8d3238e332f871cd777eb..48233c5d1b3fc705b17aedc4dbee739bc7b141d5 100644 (file)
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@ Similar projects:
 - [emn178/solidity-optimize-name](https://github.com/emn178/solidity-optimize-name)
 - [quartz-technology/sigop](https://github.com/quartz-technology/sigop)
 
+Code repository mirrors: [GitHub](https://github.com/ardislu/4-byte-gen), [Codeberg](https://codeberg.org/ardislu/4-byte-gen), [git.ardis.lu](https://git.ardis.lu/4-byte-gen)
+
 ## Example
 
 ![Demonstration of the 4-byte-gen web UI finding optimized function names for standard ERC-20 functions.](./.github/example-1.png)