Update README.md

README.md

@@ -16,12 +16,12 @@ $collection_obj = new ZenodoDepositionCollection($connection);
 
 try{
   $collection = $collection_obj->list_depositions();//returns an array of deposition objects
-}catch (HttpRuntimeException $e){
+}catch (RuntimeException $e){
   //you should only have to catch the runtime exception the first time you request data from Zenodo
   echo $e->getMessage();
   echo var_export($connection->last_response());//this is where you will find details on any errors
   return;
-}catch(HttpResponseException $e){
+}catch(LogicException $e){
   //you should catch a response exception every time you request data from Zenodo.
   echo $e->getMessage();
   echo var_export($connection->last_response());