add rev history and toc

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 [[!tag whitepapers]]
 
+**Revision History**
+
+* First revision 05may2021
+
+**Table of Contents**
+
+[[!toc]]
+
 # Why in the 2020s would you invent a new Vector ISA
 
 Inventing a new Scalar ISA from scratch is over a decade-long task