Update README

yhirose · web-flow · commit dfec2de5b57c · 2020-08-03T23:37:05.000-04:00
diff --git a/README.md b/README.md
@@ -311,6 +311,13 @@ httplib::Headers headers = {
 };
 auto res = cli.Get("/hi", headers);
 ```
+or
+```c++
+cli.set_default_headers({
+  { "Accept-Encoding", "gzip, deflate" }
+});
+auto res = cli.Get("/hi");
+```
 
 ### POST
 
