The first bullet point should link to the Greenplum database installation guide. The existing sentence can be reworded as
"Tanzu Greenplum version 5.21.2 or later or 6.x is installed in the cluster. For detailed instructions on how to install Tanzu Greenplum, please refer to the product documentation.
https://gpdb.docs.pivotal.io/pxf/6-2/release/installing_pxf.html
Installing PXF->Prerequisites
The first bullet point should link to the Greenplum database installation guide. The existing sentence can be reworded as "Tanzu Greenplum version 5.21.2 or later or 6.x is installed in the cluster. For detailed instructions on how to install Tanzu Greenplum, please refer to the product documentation.