Update README.md

README.md

@@ -13,3 +13,12 @@ SSH and GPG public keys for Tétras Libre collaborators
 `trust`
 
 Answer the response to add the confidence `5 - ultimate`. Use `quit` to leave.
+
+# Check manually if key is valid for pass 
+
+- Clone pass repository 
+- `gpg -d /path/to/key/in/pass/key.gpg.
+
+If the result is "No secret key", check in the pass repository if everything is ok : 
+- Last version of the repo (in case of force push)
+- Use QTPass or cli to add concerned key