Add links for downloading of big and huge JSON samples

Author: plokhotnyuk

jsoniter-scala-examples/README.md

@@ -132,6 +132,14 @@ Scala.js build is missing because it doesn't support reading from the system inp
 
 No GC options are used to speed up JSON validation for all supported builds.
 
+Also, this script was tested with big (megabytes) and huge (gygabytes) inputs that could be downloaded and unpacked using 
+following commands:
+```sh
+wget https://raw.githubusercontent.com/json-iterator/test-data/master/large-file.json
+wget https://webtpa-public-access.s3.us-west-2.amazonaws.com/subfolder/2023_06_430_65B0_in_network_rates.json.gz
+gunzip 2023_06_430_65B0_in_network_rates.json.gz
+```
+
 ### Build uber jar, print its size, and measure its start up time
 
 ```sh