move intro file to about

Author: pthmas

learn/about.md

@@ -1,3 +1,12 @@
+# Introduction
+
+Welcome to the Rollkit docs. We're happy you made it here!
+Rollkit allows anyone to launch an unstoppable blockchain as easily as a smart contract.
+
+Rollkit is the unstoppable stack.
+
+We're setting the bar high for developers' flexibility and ability to customize blockchains however they see fit.
+
 # About Rollkit
 
 Our mission is to allow anyone to launch their own sovereign, customizable blockchain as easily as a smart contract by utilizing the shared security of a modular data availability network.