flags for tested countries

readme.md

@@ -1,10 +1,15 @@
 # Passy: A Flipper Zero Passport reader
 
+## Tested with the following countries:
+🇺🇸
+🇨🇱
+
+(If it works for yours, submit a PR to add your country flag)
+
 ## Notes:
  - Caches MRZ info to make subsequent use faster
 
 ## Limitations
- - Only tested with a US passport
  - Only requests DG1, the contents of the MRZ
 
 ## To do