In WordPress Dashboard go to the Appearance submenu and click on Customize.
After clicking on customize you will in theme Customizer.
Here you have to click on Page Template than Taxonomy Page
In Portfolio Here you can manage Title & DescriptionOf Portfolio Taxonomy.
Go to Customize -> Page Template ->Taxonomy Page ->Portfolio
In WordPress Dashboard go to Appearance submenu and click on Customize.
After clicking on customize you will in theme Customizer.
Here you have to click on Page Template than Taxonomy Page
In Pricing Here you can manage Title & DescriptionOf Pricing Taxonomy.
Go to Customize -> Page Template ->Taxonomy Page ->Pricing