public ExternalDocumentation build() {
		return new ExternalDocumentation() {
			@Override
			public Class<? extends Annotation> annotationType() {
				return null;
			}

			@Override
			public String description() {
				return description;
			}

			@Override
			public String url() {
				return url;
			}

			@Override
			public Extension[] extensions() {
				return extensions;
			}
		};
	}
Build external documentation.

@return the external documentation
springdoc-openapi-starter-common/src/main/java/org/springdoc/core/fn/builders/externaldocumentation/Builder.java