fix: readme for knex adapter

Author: Papooch

packages/transactional-adapters/transactional-adapter-knex/README.md

@@ -1,5 +1,5 @@
-# @nestjs-cls/transactional-adapter-prisma
+# @nestjs-cls/transactional-adapter-knex
 
-Pg (node-postgres) adapter for the `@nestjs-cls/transactional` plugin.
+Knex adapter for the `@nestjs-cls/transactional` plugin.
 
 ### ➡️ [Go to the documentation website](https://papooch.github.io/nestjs-cls/plugins/available-plugins/transactional) 📖