add newly supported fmspc (#294)

Author: RogerLamTd

Diff for: docs/README_Docker_and_RA.md

@@ -172,6 +172,7 @@ Currently Supported FMSPCs (on Hekla):
 - 00A067110000
 - 00906ED50000
 - 30606A000000
+- 00706A100000
 
 Please reach out to us in [discord](https://discord.com/invite/taikoxyz) channels if your machine doesn't have a listed FMSPC, if you've done the bootstrap process and obtained a quote we can try adding them to the On Chain RA process. We can't guarantee all FMSPCs will work, so you might have to switch machines.