readme: add brotli to libraries

TheOneric · TheOneric · commit 6ec2cd134c49 · 2021-10-05T22:23:55.000+02:00
diff --git a/README.md b/README.md
@@ -24,6 +24,7 @@ and enables you to get consistent results in authoring and web-playback, provide
 * freetype
 * fribidi
 * harfbuzz
+* brotli
 
 ## Usage
 
