docs: image svg element use href attribute (#782) (#1067)

Co-authored-by: Rush Ali <s0aPii.ra@googlemail.com>

closes #782 #1067

Author: mstelbrink

docs/guide/features.md

@@ -179,7 +179,7 @@ Von HTML-Elementen wie `<script type="module" src>` und `<link href>` referenzie
 - `<audio src>`
 - `<embed src>`
 - `<img src>` und `<img srcset>`
-- `<image src>`
+- `<image href>` and `<image xlink:href>`
 - `<input src>`
 - `<link href>` und `<link imagesrcset>`
 - `<object data>`