updated link and hugo theme (#811)

* fixed link to Ansible install, updated hugo theme

Author: cahoonpwork

README.md

@@ -35,7 +35,7 @@ The Operator is developed and tested on CentOS and RHEL linux platforms but is k
 
 If you are new to the Crunchy PostgreSQL Operator and interested in installing the Crunchy PostgreSQL Operator in your environment, please start here:
  - [Installation via Bash](https://access.crunchydata.com/documentation/postgres-operator/4.0.0/installation/operator-install/)
- - [Installation via Ansible](https://access.crunchydata.com/documentation/postgres-operator/4.0.0/gettingstarted/install-with-ansible/)
+ - [Installation via Ansible](https://access.crunchydata.com/documentation/postgres-operator/4.0.0/installation/install-with-ansible/)
 
 If you have the Crunchy PostgreSQL Operator installed in your environment, and are interested in installation of the client interface, please start here:
 [PGO Client Install](https://access.crunchydata.com/documentation/postgres-operator/4.0.0/installation/install-pgo-client/)