chore: Update typo in README.md (#888)

Author: jackwotherspoon

README.md

@@ -260,7 +260,7 @@ For example: suppose you wanted to use the domain name
 
 #### Configure the connector
 
-Configure the connector as described above, replacing the conenctor ID with
+Configure the connector as described above, replacing the connector ID with
 the DNS name. 
 
 Adapting the MySQL + database/sql example above: