Update Bitcoin donation address to SegWit format

Author: priore

README.md

@@ -446,6 +446,6 @@ Scan the code below with your cryptocurrency wallet or copy the address.
 
 |Donate with BTC (Bitcoin)
 |:------------:|
-|![](https://www.prioregroup.com/images/priore_btc.jpg)
-|`BTC Address (Legacy) : 1BzAxN3FcjCqYKmFnFkJ4nW22UjXwne1wf`
+|![](https://www.prioregroup.com/images/priore_btc_segwit.jpg)
+|`BTC Address (SegWit) : bc1q6mxjea7xfjprl70k80jt8gyqxjvp5j6pa9yzxs`