[librsvg: 1/5] README.md: Link to FEATURES.md near the beginning

[Marge Bot <marge-bot src gnome org>]

commit 2fe61158d9d081017b99657cd4bb7a47e73dc023
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Dec 15 10:37:45 2021 -0600

    README.md: Link to FEATURES.md near the beginning
    
    Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/642>

 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/README.md b/README.md
index feb3c3c6..db96c9e2 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,9 @@ generate output for printing.
 Do you want to render non-animated SVGs to a Cairo surface with a
 minimal API?  Librsvg may be adequate for you.
 
-***GITHUB WILL DELETE YOUR PULL REQUESTS!***  We use
+**Supported SVG/CSS features:** Please see the [FEATURES.md](FEATURES.md) file.
+
+***PLEASE DO NOT SEND PULL REQUESTS TO GITHUB.***  We use
 [`gitlab.gnome.org`](https://gitlab.gnome.org/GNOME/librsvg) instead.
 Please see [`CONTRIBUTING.md`][contributing] for details.