Merge branch 'testing' of github.com:YunoHost-Apps/flohmarkt_ynh into testing

ALL_README.md

@@ -1,6 +1,7 @@
 # All available README files by language
 
 - [Read the README in English](README.md)
+- [Lee el README en español](README_es.md)
 - [Irakurri README euskaraz](README_eu.md)
 - [Lire le README en français](README_fr.md)
 - [Le o README en galego](README_gl.md)