Added Tindie store link

README.md

@@ -41,6 +41,12 @@ The module can be used:
 
 LoRaProMini does not take care of the compliance with the duty cycle limitation. Please select only transmission intervals that are within the legal limits (1%/0.1%). Please also note that the interrupt inputs may cause additional transmissions if this function is activated.
 
+### PCB Ordering
+
+:point_up: I still have a few PCBs left. If you are interested please contact me. Contact details can be found here: https://github.com/foorschtbar or visit my Tindie store: 
+
+<a href="https://www.tindie.com/stores/foorschtbar/?ref=offsite_badges&utm_source=sellers_foorschtbar&utm_medium=badges&utm_campaign=badge_medium"><img src="https://d2ss6ovg47m0r5.cloudfront.net/badges/tindie-mediums.png" alt="I sell on Tindie" width="150" height="78"></a>
+
 ## Example Applications
 
 ### Environmental (Weather/Clima) Sensor