add new patreons to the credit

core/src/credits.cpp

@@ -70,6 +70,7 @@ namespace sdrpp_credits {
         "Flinger Films",
         "Frank Werner (HB9FXQ)",
         "gringogrigio",
+        "Jandro",
         "Jeff Moe",
         "Joe Cupano",
         "KD1SQ",

readme.md

@@ -440,6 +440,7 @@ For code changes, please create a feature request instead.
 * Flinger Films
 * [Frank Werner (HB9FXQ)](https://twitter.com/HB9FXQ)
 * gringogrigio
+* Jandro
 * Jeff Moe
 * Joe Cupano
 * KD1SQ