docs: update readme

Signed-off-by: Daniel Hu <[email protected]>

Author: daniel-hutao

README.md

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+> We are gonna revive this project recently.
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 ## DevStream, What Is It Anyway?
 
 TL;DR: DevStream (CLI tool named `dtm`) is an open-source DevOps toolchain manager.

README_zh.md

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 </div>
 
+> We are gonna revive this project recently.
+
 ## DevStream 是什么？
 TL;DR: DevStream（CLI工具名为`dtm`）是一个开源的DevOps工具链管理器。