Add launchdarkly alternative to the migrator news text (#540)

Author: kp-cat

website/docs/news.mdx

@@ -14,7 +14,7 @@ Here, you'll find all the latest updates, enhancements, and new features we've a
 
 **Thinking about moving away from LaunchDarkly? ConfigCat just made that easier for you.**
 
-If you're a LaunchDarkly user and curious about switching, we have good news for you: we've launched a new feature
+If you're curious about switching to a LaunchDarkly alternative, ConfigCat has good news for you: we've launched a new feature
 called the "Import from LaunchDarkly" tool, which makes it a breeze to migrate LaunchDarkly feature flags and segments
 into ConfigCat.