docs(MigrationGuide): format headings (#6098)

Co-authored-by: Marcus Notheis <[email protected]>

Author: Lukas742

docs/MigrationGuide.css

@@ -0,0 +1,14 @@
+h1#migration-guide-v1-to-v2 ~ h2 {
+  margin-block-start: 5rem;
+}
+
+h1#migration-guide-v1-to-v2 ~ h3 {
+  border-start-start-radius: 3px;
+  border-end-start-radius: 3px;
+  padding-inline-start: 0.25rem;
+  background: linear-gradient(to right, var(--sapInformationColor) -500%, transparent 100%);
+}
+
+h1#migration-guide-v1-to-v2 ~ h3:dir(rtl) {
+  background: linear-gradient(to left, var(--sapInformationColor) -500%, transparent 100%);
+}

docs/MigrationGuide.mdx

@@ -1,5 +1,6 @@
 import { Footer, TableOfContent } from '@sb/components';
 import { Meta } from '@storybook/blocks';
+import './MigrationGuide.css';
 
 <Meta title="Migration Guide" />