Update index.md

Author: microbit-mark

software/index.md

@@ -39,11 +39,11 @@ The 'high level' programming languages for the micro:bit break down into two bro
 
 *C/C++, while certainly compiled, is not considered a high-level language in this context*
 
-In order to ensure that the micro:bit online code editors could scale to support 1M deployed boards, Microsoft built [MakeCode](https://makecode.microbit.org), an in-browser-compiler written in TypeScript.
+In order to ensure that the micro:bit online code editors could scale to support millions of deployed boards, Microsoft built [MakeCode](https://makecode.microbit.org), an in-browser-compiler written in TypeScript.
 
-This process is explained in full in the [In browser compiler](/software/in_browser_compiler) page, and in fantastic detail at [TouchDevelop in 208 bits](https://www.touchdevelop.com/docs/touch-develop-in-208-bits).
+This process further explained in the [MakeCode software page](/software/makecode) page, and the history of development in [TouchDevelop in 208 bits](https://www.touchdevelop.com/docs/touch-develop-in-208-bits).
 
-These in-browser-compilers do not compile the whole of the software stack, but just the user's script. Function calls and low level functions are handled by the micro:bit runtime and Mbed. A pre-compiled runtime image is included in the browser and concatenated with the compiled script before being presented for download.
+In-browser-compilers do not compile the whole of the software stack, just the user's script. Function calls and low level functions are handled by the micro:bit runtime. A pre-compiled runtime image is included in the browser and concatenated with the compiled script before being presented for download.
 
 ### Interpreted languages