Update README.md (#4290)

Correct the make download command: V should be in capital to work.
2020-04-17 00:45:25 +08:00 · 2020-04-17 00:45:25 +08:00 · 6b142baa3d
commit 6b142baa3d
parent 5f3f4e3566
1 changed files with 1 additions and 1 deletions
--- a/README.md
+++ b/README.md
@ -27,7 +27,7 @@ sudo apt-get -y install build-essential asciidoc binutils bzip2 gawk gettext git
   make menuconfig
   ```

-5. `make -j8 download v=s` 下载dl库（国内请尽量全局科学上网）
+5. `make -j8 download V=s` 下载dl库（国内请尽量全局科学上网）


 6. 输入 `make -j1 V=s` （-j1 后面是线程数。第一次编译推荐用单线程）即可开始编译你要的固件了。