code: public Response andContent(String name, Object object) {
          Objects.requireNonNull(name, Required.NAME.toString());
          this.content.put(name, object);
  
          return this;
      }
docs: Adds a value to the template that can be accessed using ${name} in the template
  
  @param name The name of the value
  @param object The actual value
  @return A response object {@link io.mangoo.routing.Response}