In JDBC tutorial, some parts are duplicated in the same trail

A DESCRIPTION OF THE PROBLEM :
1- In the following link "https://docs.oracle.com/javase/tutorial/jdbc/overview/index.html", both sub-parts named 'JDBC Architecture' and 'A Relational Database Overview' are just duplicate and should be removed, because the same contents exist in the following links "https://docs.oracle.com/javase/tutorial/jdbc/overview/architecture.html" and "https://docs.oracle.com/javase/tutorial/jdbc/overview/database.html".

2- In the following link "https://docs.oracle.com/javase/tutorial/jdbc/overview/index.html", in the sub-part named 'JDBC Product Components', the following sentence "This Trail uses the first two of these these four JDBC components to connect to a database" should be replaced by "This Trail uses the first two of these four JDBC components to connect to a database", because the word 'these' is duplicated.



URL OF FAULTY DOCUMENTATION :
https://docs.oracle.com/javase/tutorial/jdbc/overview/index.html