doc: Correct README.md grammar sequence mistake

Pil0tXia · Pil0tXia · commit 619fb9935c94 · 2023-07-06T11:45:19.000+08:00
diff --git a/eventmesh-connectors/README.md b/eventmesh-connectors/README.md
@@ -4,7 +4,7 @@
 A connector is a bridge that interacts with a specific external service or underlying data source (e.g., Databases) on behalf of user applications. A connector is either a Source or a Sink.
 
 ## Source
-A source connector obtains data from an underlying data producer and delivers it to targets, after original data has been transformed into CloudEvents. It doesn't limit the way how a source retrieves data. (e.g., A source may pull data from a message queue or act as an HTTP server waiting for data sent to it).
+A source connector obtains data from an underlying data producer, and delivers it to targets after original data has been transformed into CloudEvents. It doesn't limit the way how a source retrieves data. (e.g., A source may pull data from a message queue or act as an HTTP server waiting for data sent to it).
 
 ## Sink 
 A sink connector receives CloudEvents and does some specific business logics. (e.g., A MySQL Sink extracts useful data from CloudEvents and writes them to a MySQL database).
