add conflict message

Author: crazywhalecc

docs/en/guide/extension-notes.md

@@ -93,4 +93,5 @@ Snappy configuration may break features of other extensions. Use with caution. S
 
 ## password-argon2
 
-password-argon2 is not a standard extension, it is an additional algorithm for the `password_hash` function.
+1. password-argon2 is not a standard extension, it is an additional algorithm for the `password_hash` function.
+2. On Linux systems, `password-argon2` dependency `libargon2` conflicts with the `libsodium` library.

docs/zh/guide/extension-notes.md

@@ -83,4 +83,5 @@ Snappy 配置可能会破坏其他扩展的功能，请谨慎使用。相关链
 
 ## password-argon2
 
-password-argon2不是一个标准的扩展，它是 `password_hash` 函数的额外算法。
+1. password-argon2不是一个标准的扩展，它是 `password_hash` 函数的额外算法。
+2. 在Linux系统，password-argon2 的依赖库 `libargon2` 与 `libsodium` 库冲突。