Add iQIYI.COM at the powered by page (#5279)

docs/powered-by.md

@@ -71,6 +71,7 @@ or providing commercial products including Apache SkyWalking.
 1. iBoxChain 盒子科技 https://www.iboxpay.com/
 1. iFLYTEK. 科大讯飞股份有限公司-消费者BG http://www.iflytek.com/
 1. Inspur 浪潮集团
+1. iQIYI.COM. 爱奇艺 https://www.iqiyi.com/
 1. juhaokan 聚好看科技股份有限公司 https://www.juhaokan.org/
 1. Ke.com. 贝壳找房. https://www.ke.com
 1. Keking.cn 凯京集团. http://www.keking.cn