add toolchains

README.md

@@ -1,5 +1,9 @@
 # RISC-V Project Template
 
+**THIS BRANCH IS UNDER DEVELOPMENT**
+**IT CURRENTLY HAS MANY SUBMODULES**
+**PLEASE RUN ./build.sh TO UPDATE SUBMODULES, UNLESS YOU WANT TO SPEND A LONG TIME WAITING FOR SUBMODULE TO CLONE** 
+
 This is a starter template for your custom RISC-V project. It will allow you
 to leverage the Chisel HDL and RocketChip SoC generator to produce a
 RISC-V SoC with MMIO-mapped peripherals, DMA, and custom accelerators.