Update README.md

Author: sagark

README.md

@@ -5,4 +5,16 @@ ANGEL is a Javascript RISC-V ISA (RV64) Simulator that runs riscv-linux with Bus
 
 Check out the demo running at: https://riscv.org/software-tools/riscv-angel/
 
-*NOTE:* ANGEL is not under active development - it implements old draft versions of the RISC-V specs (~late 2014)
+## *NOTE:* 
+
+ANGEL is not under active development - it implements old draft versions of the RISC-V specs (~late 2014)
+
+## Building/Running locally
+
+Run `make`, make sure you have GNU sed.
+
+Start a webserver in the angel directory, e.g.
+
+    python -m SimpleHTTPServer 8000
+    
+Visit localhost:8000/run.html in your browser.