Update README.md

Formatting.

Author: compuphase

README.md

@@ -1,10 +1,11 @@
 # Embedded Debugging with the Black Magic Probe
 <img src="https://www.compuphase.com/electronics/blackmagicprobe-book.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 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>
+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.
 
+&nbsp;<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. 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.
 
-The guide is licensed under the [Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License](https://creativecommons.org/licenses/by-nc-nd/4.0/).
+The guide is licensed under the [Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License](https://creativecommons.org/licenses/by-nc-nd/4.0/). A printed copy (might you prefer that) is available from lulu and Amazon.<br clear="all"/>
 ## 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.