Fix broken screenshot link and markdown issues

Signed-off-by: Christian König <ckoenig@posteo.de>

README.md

@@ -1,24 +1,30 @@
-***Note:** PADD has been adopted by the Pi-hole team, thanks to JPMCK for creating this helpful tool!
-
 # PADD
 
 PADD (formerly Chronometer2) is a more expansive version of the original chronometer.sh that is included with [Pi-Hole](https://pi-hole.net). PADD provides in-depth information about your Pi-hole.
 
-![PADD](https://jpmck.com/img/blog/padd.png)
+![PADD Screenshot](https://pi-hole.github.io/graphics/Screenshots/padd.png)
+
+***Note:** PADD has been adopted by the Pi-hole team, thanks to JPMCK for creating this helpful tool!
 
 ## Setup PADD
+
 *More in-depth information about setting up PADD can be found in this repo’s [wiki](https://github.com/jpmck/PADD/wiki/Setup).*
 
 - Get a copy of PADD by running:
+
 ```bash
 cd ~
 wget -N https://raw.githubusercontent.com/pi-hole/PADD/master/padd.sh
 ```
+
 - Make PADD executable by running
+
 ```bash
 sudo chmod +x padd.sh
 ```
+
 - Set PADD to auto run by adding the following to the end of `~/.bashrc`:
+
 ```bash
 # Run PADD
 # If we’re on the PiTFT screen (ssh is xterm)
@@ -30,14 +36,19 @@ if [ "$TERM" == "linux" ] ; then
   done
 fi
 ```
+
 One line version
+
 ```bash
 cd ~ ; echo "if [ \"\$TERM\" == \"linux\" ] ; then\n  while :\n  do\n    ./padd.sh\n    sleep 1\n  done\nfi" | tee ~/.bashrc -a
 ```
+
 - Reboot your Pi-Hole by running `sudo reboot`. PADD should now run when your Pi-Hole has completed booting.
 
 ## Updating PADD
+
 - Just run
+
 ```bash
 cd ~
 wget -N https://raw.githubusercontent.com/pi-hole/PADD/master/padd.sh
@@ -46,4 +57,5 @@ wget -N https://raw.githubusercontent.com/pi-hole/PADD/master/padd.sh
 **Note: if you are already running Chronometer2 v1.3.1 or below, you’ll need to follow [these instructions](https://github.com/jpmck/PADD/wiki/Updating-from-Chronometer2)!**
 
 ## FAQ
+
 *Answers to frequently asked questions can be found in this repo’s [wiki](https://github.com/jpmck/PADD/wiki/FAQ).*