New shortcode option
Assignment adds an option to the testimonial count shortcode.
| All testimonials | [testimonial_count] | 29 |
| Bronze service (ID: 10) | [testimonial_count assignment="10"] | 29 |
| Silver service (ID: 12) | [testimonial_count assignment="12"] | 29 |
| Gold service (ID: 14) | [testimonial_count assignment="14"] | 29 |
| Unassigned | [testimonial_count assignment="0"] | 29 |