Mistakes between an example and its description - Mailing list pgsql-docs

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/9.6/static/sql-createindex.html
Description:

In Postgres Doc: Index
page(https://www.postgresql.org/docs/9.6/static/sql-createindex.html), there
is an mismatch between an example description and an example SQL statement.


The description is below :
To create a B-tree index on the column title in the table films:

Meanwhile, the example provided is an UNIQUE constrain.
CREATE UNIQUE INDEX title_idx ON films (title);