fix legacy routes redirect

Author: AlexBlokh

public/_redirects

@@ -32,4 +32,11 @@
 /learn /docs/guides 301
 /learn/tutorials /docs/tutorials 301
 /learn/guides /docs/guides 301
-/learn/latest-releases /docs/latest-releases 301
+/learn/latest-releases /docs/latest-releases 301
+
+/kit-docs/quick /docs/kit-overview
+/kit-docs/conf /docs/drizzle-config-file
+/kit-docs/commands /docs/kit-overview
+/kit-docs/config-reference /docs/drizzle-config-file
+/kit-docs/faq /docs/kit-overview
+/kit-docs/upgrade-21 /docs/kit-overview