add full text search example

.testdata/v0.6.0-search.md

@@ -0,0 +1,12 @@
+---
+title: Full Text Search
+description: Quickly find relevant release notes with our category filter and full text search
+publishedAt: 2024-11-25
+tags:
+    - Feature
+---
+
+![](https://i.ibb.co/bgBh9qv/search.webp)
+
+Openchangelog can now maintain a full text index of your changelog.  
+With this feature you can search through your entire changelog with ease and filter by category to find relevant release notes.