Update README.md

Author: rosedahl

Processor Register Definitions/README.md

@@ -3,5 +3,3 @@
 This work is licensed under a Creative Commons Attribution 4.0 International License. See the LICENSE file for details.
 
 This repo contains all of the processor register definitions for POWER10.  To view the files rendered, go to the file name (eg. "function.md"), select the "raw" view and copy that link into [Github HTML Preview] https://htmlpreview.github.io/?
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-To see all of the register definitions in 1 file, look in "p10_regs.html".  This file is too big to render in a browser.