rn-118: add Git 2.48.0-rc1 release

Author: chriscool

rev_news/drafts/edition-118.md

@@ -179,7 +179,8 @@ __Git tools and sites__
 
 ## Releases
 
-+ Git [2.48.0-rc0](https://public-inbox.org/git/[email protected]/)
++ Git [2.48.0-rc1](https://public-inbox.org/git/[email protected]/),
+[2.48.0-rc0](https://public-inbox.org/git/[email protected]/)
 + Git for Windows [2.48.0-rc0(1)](https://github.com/git-for-windows/git/releases/tag/v2.48.0-rc0.windows.1)
 + libgit2 [1.9.0](https://github.com/libgit2/libgit2/releases/tag/v1.9.0)
 + GitHub Enterprise [3.15.1](https://help.github.com/[email protected]/admin/release-notes#3.15.1),