Update openpai -> OpenPAI (#301)

qfyin · Qiufeng Yin · web-flow · commit fd9e9b53df29 · 2021-05-26T13:39:05.000+08:00
Co-authored-by: Qiufeng Yin &lt;qfyin@microsoft.com&gt;
diff --git a/README.md b/README.md
@@ -14,7 +14,7 @@
 
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-A marketplace which stores data and job templates of openpai. Users could use openpaimarketplace to share their jobs or run-and-learn others' sharing job.
+A marketplace which stores data and job templates of OpenPAI. Users could use openpaimarketplace to share their jobs or run-and-learn others' sharing job.
 
 ## Components
 
