chore: update example env

Author: steveiliop56

.env.example

@@ -7,7 +7,7 @@ TINYAUTH_APPURL=
 
 # database config
 
-# The path to the database file.
+# The path to the database, including file name.
 TINYAUTH_DATABASE_PATH="./tinyauth.db"
 
 # analytics config
@@ -116,9 +116,9 @@ TINYAUTH_OAUTH_PROVIDERS_name_NAME=
 
 # oidc config
 
-# Path to the private key file.
+# Path to the private key file, including file name.
 TINYAUTH_OIDC_PRIVATEKEYPATH="./tinyauth_oidc_key"
-# Path to the public key file.
+# Path to the public key file, including file name.
 TINYAUTH_OIDC_PUBLICKEYPATH="./tinyauth_oidc_key.pub"
 # OIDC client ID.
 TINYAUTH_OIDC_CLIENTS_name_CLIENTID=