Add json serializer in documentation

Maxime CORNET · michael-grunder · commit 305c15840c03 · 2021-10-05T14:34:58.000-07:00
diff --git a/README.markdown b/README.markdown
@@ -358,6 +358,7 @@ $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_NONE);	  // Don't ser
 $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_PHP);	  // Use built-in serialize/unserialize
 $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_IGBINARY); // Use igBinary serialize/unserialize
 $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_MSGPACK);  // Use msgpack serialize/unserialize
+$redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_JSON);  // Use JSON to serialize/unserialize
 
 $redis->setOption(Redis::OPT_PREFIX, 'myAppName:');	// use custom prefix on all keys
 
@@ -390,7 +391,7 @@ Parameter value.
 ##### *Example*
 ~~~php
 // return Redis::SERIALIZER_NONE, Redis::SERIALIZER_PHP, 
-//        Redis::SERIALIZER_IGBINARY, or Redis::SERIALIZER_MSGPACK
+//        Redis::SERIALIZER_IGBINARY, Redis::SERIALIZER_MSGPACK or Redis::SERIALIZER_JSON
 $redis->getOption(Redis::OPT_SERIALIZER);
 ~~~
 
