add new event openpower summit 2021

Signed-off-by: Toshaan Bharvani <toshaan@vantosh.com>

content/events/openpowersummit21.md

@@ -1,7 +1,19 @@
 ---
 title: "OpenPOWER Summit Virtual 2021"
-eventdate: 2021-09-15
+eventdate: 2021-11-04
 eventlocation: "Virtual"
-date: 2021-03-18
+date: 2021-05-30
 draft: false
 ---
+
+The __OpenPOWER Summit 2021__ is going to be _virtual_ again, and will be held on __4th November 2021__.  
+
+The event will bring open hardware and software developers, OpenPOWER Member companies,
+researchers and academics across the ecosystem to share learnings, highlight innovation and
+discuss the future of OpenPOWER in an online setting. Architects, developers, executives, and end users are all welcome.  
+
+We are looking for presentations about OpenPOWER, more can be found on the following website.  
+[https://cfp.openpower.foundation/summit2021/cfp](https://cfp.openpower.foundation/summit2021/cfp){{< externallink >}}  
+
+We will be opening registration soon, please keep an eye on this page for updates.  
+