Update README.md

Author: compuphase

README.md

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 # Embedded Debugging with the Black Magic Probe
 <img src="https://github.com/compuphase/Black-Magic-Probe-Book/blob/master/doc/BlackMagicProbe-front-cover.jpg" alt="Book cover" width="400" align="right">
-This guide covers setting up and using the <a href="https://github.com/blackmagic-debug/blackmagic/">Black Magic Probe</a>. The Black Magic Probe is a relatively cheap JTAG/SWD probe for ARM Cortex micro-controllers. A distinguishing feature of the Black Magic Probe is that it embeds a GDB server. As a result, the GNU Debugger can directly connect to the Black Magic Probe.<br>
+This guide covers setting up and using the <a href="https://github.com/blackmagic-debug/blackmagic/">Black Magic Probe</a>. The Black Magic Probe is a low cost JTAG/SWD probe for ARM Cortex micro-controllers. A distinguishing feature of the Black Magic Probe is that it embeds a GDB server. As a result, the GNU Debugger can directly connect to the Black Magic Probe.<br>
 
-While setting up and using the Black Magic Probe has also been covered in wikis and blogs, I found that those description often only scratched the surface of the subject. With this guide, I set out to give a more comprehensive account. Later, I also added specific notes on [ctxLink](http://www.sidprice.com/ctxlink/), a derivative of the Black Magic Probe that offers a WiFi connection.
+While setting up and using the Black Magic Probe has also been covered in wikis and blogs, I found that those description often only scratched the surface of the subject. With this guide, I set out to give a more comprehensive account. Over time, this guide has been updated to cover new firmware releases, as well as specific notes on [ctxLink](http://www.sidprice.com/ctxlink/), a derivative of the Black Magic Probe that offers a WiFi connection.
 ## Utilities
 Several utilities accompagny this guide. Some are small, such as `bmscan` to locate the (virtual) serial port at which the Black Magic Probe is found (or scans the local network for ctxLink). Another is a helper tool for a specific family of micro-controllers (`elf-postlink`). There are GUI utilities and text-mode utilities. All have been tested under Microsoft Windows and Linux.