[PATCH tianocore-docs 2/2] Readme.md: Update the Gitbook documentation section

["Rebecca Cran" <rebecca@bsdio.com>]

We no longer use Gitbook for publishing the documentation.
Update the section to direct users to use the mailing list to
send feedback, and fix the Gitbook URL to point to the documentation
which includes how to format the documents.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Rebecca Cran <rebecca@bsdio.com>
---
 Readme.md | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/Readme.md b/Readme.md
index 1e4a5d25bd6f..7f0c05710c78 100644
--- a/Readme.md
+++ b/Readme.md
@@ -30,12 +30,11 @@ documentation.
 
 # EDK II GitBook Documents
 
-These are the latest draft revisions published using [Gitbook](https://legacy.gitbook.com/).
+These are the latest draft revisions published using [Gitbook](https://docs.gitbook.com/).
 The source content for these documents are in GIT repositories in the
 [Tianocore-docs](https://github.com/tianocore-docs) organization hosted by [GitHub](https://github.com).
-Feedback on these documents may be provided using the [Gitbook](https://www.gitbook.com) commenting feature
-available when reading the **HTML** versions of the documents. Document issues and feature requests can also
-be entered in [Tianocore Bugzilla](https://bugzilla.tianocore.org).
+Feedback on these documents may be provided via the mailing list.
+Document issues and feature requests can also be entered in [Tianocore Bugzilla](https://bugzilla.tianocore.org).
 
 * **_EDK II Build Specification_** \[
 [HTML   ](https://tianocore-docs.github.io/edk2-BuildSpecification/draft/),
-- 
2.37.1 (Apple Git-137.1)