docs: add MaterialApp meta

Florian-Schoenherr · Florian-Schoenherr · commit 837262a64b90 · 2021-02-12T14:10:52.000+01:00
Signed-off-by: Florian-Schoenherr &lt;florian.schoenherr99@gmail.com&gt;
diff --git a/packages/docs/src/routes/components/material-app.md b/packages/docs/src/routes/components/material-app.md
@@ -1,5 +1,7 @@
 ---
 title: Material App
+description: The material app component is a wrapper which provides all components inside it with styles and helpers
+keywords: material app, svelte materialify material component, svelte material component
 related:
   - getting-started/installation
   - getting-started/usage
