add bounds info

src/main/java/gov/usgs/earthquake/nshmp/www/SwaggerController.java

 package gov.usgs.earthquake.nshmp.www;
 
 import java.util.List;
+import java.util.Optional;
 
 import org.slf4j.LoggerFactory;
 
@@ -56,6 +57,7 @@ public class SwaggerController {
     var schemas = components.getSchemas();
     SwaggerUtils.siteClassSchema(schemas, List.copyOf(model.siteClasses().keySet()));
     SwaggerUtils.imtSchema(schemas, List.copyOf(model.config().hazard.imts));
+    var boundsInfo = SwaggerUtils.locationBoundsInfo(bounds.min, bounds.max, Optional.empty());
     FeaturesService.featureTypeSchema(schemas);
     openApi.servers(null);
 
@@ -63,8 +65,7 @@ public class SwaggerController {
     openApi.getInfo().setDescription(
         "National Seismic Hazard Model (NSHM) hazard calculations and queries for the " +
             model.name() + " hazard model.\n\n" +
-            String.format("Latitude bounds: [%s, %s]<br>", bounds.min.latitude, bounds.max.latitude) +
-            String.format("Longitude bounds: [%s, %s]", bounds.min.longitude, bounds.max.longitude));
+            boundsInfo);
 
     return openApi;
   }