docs: minor fixes to README.md (#3831)

README.md

@@ -10,7 +10,7 @@ Copyright 2020-2022 by Peng Cheng Laboratory.
 
 ## Docs and slides
 
-[XiangShan-doc](https://github.com/OpenXiangShan/XiangShan-doc) is our official documentation repository. It contains design spec., technical slides, tutorial and more.
+[XiangShan-doc](https://github.com/OpenXiangShan/XiangShan-doc) is our official documentation repository. It contains design spec., technical slides, tutorials and more.
 
 * Micro-architecture documentation of XiangShan has been published. Please check out https://xiangshan-doc.readthedocs.io
 
@@ -38,13 +38,13 @@ Zhihu/知乎：[香山开源处理器](https://www.zhihu.com/people/openxiangsha
 
 Weibo/微博：[香山开源处理器](https://weibo.com/u/7706264932)
 
-You can contact us through [our mail list](mailto:[email protected]). All mails from this list will be archived to [here](https://www.mail-archive.com/[email protected]/).
+You can contact us through [our mailing list](mailto:[email protected]). All mails from this list will be archived [here](https://www.mail-archive.com/[email protected]/).
 
 ## Architecture
 
-The first stable micro-architecture of XiangShan is called Yanqihu (雁栖湖) [on the yanqihu branch](https://github.com/OpenXiangShan/XiangShan/tree/yanqihu), which has been developed since June 2020.
+The first stable micro-architecture of XiangShan is called Yanqihu (雁栖湖) and is [on the yanqihu branch](https://github.com/OpenXiangShan/XiangShan/tree/yanqihu), which has been developed since June 2020.
 
-The second stable micro-architecture of XiangShan is called Nanhu (南湖) [on the nanhu branch](https://github.com/OpenXiangShan/XiangShan/tree/nanhu).
+The second stable micro-architecture of XiangShan is called Nanhu (南湖) and is [on the nanhu branch](https://github.com/OpenXiangShan/XiangShan/tree/nanhu).
 
 The current version of XiangShan, also known as Kunminghu (昆明湖), is still under development on the master branch.