Fixed 201 code

app/src/main/java/ru/myitschool/work/data/source/NetworkDataSource.kt

@@ -74,7 +74,7 @@ object NetworkDataSource {
                 setBody(BookBody(date, placeId))
             }
             when(response.status) {
-                HttpStatusCode.OK -> true
+                HttpStatusCode.Created -> true
                 else -> error(response.bodyAsText())
             }
         }