docs: fix misleading CLI usage examples in README

Author: BinaryHusk

README.md

@@ -43,14 +43,12 @@ The CLI mirrors the classic `cstool` UX. For example, to decode a RISC-V instruc
 make run -- riscv32 13000513 -d
 ```
 
-The command also accepts arguments without the explicit `--` separator:
+Alternatively, use the `RUN_ARGS` variable. This prevents `make` from misinterpreting flags like `-d`:
 
 ```bash
-make run riscv32 13000513 -d
+make run RUN_ARGS="riscv32 13000513 -d"
 ```
 
-Internally the target forwards any trailing words to the binary (or you can pass them via `RUN_ARGS="..."`).
-
 ## Testing
 
 Run the full regression suite from the repository root:

README_CN.md

@@ -44,14 +44,12 @@ CLI 镜像了经典的 `cstool` 用户体验。例如，要解码 RISC-V 指令
 make run -- riscv32 13000513 -d
 ```
 
-该命令也接受不带显式 `--` 分隔符的参数：
+或者，您可以使用 `RUN_ARGS` 变量。这样可以防止 `make` 错误解析 `-d` 等标志：
 
 ```bash
-make run riscv32 13000513 -d
+make run RUN_ARGS="riscv32 13000513 -d"
 ```
 
-在内部，目标会将任何尾随单词转发给二进制文件（或者您可以通过 `RUN_ARGS="..."` 传递它们）。
-
 ## 测试
 
 从仓库根目录运行完整的回归测试套件：