fix text in plugin settings

1.1.3

fix text

Fix prefix and suffix usage

i18nextify uses per default {{...}} for variables; koken also does so and therefore overwrites the ones of i18nextify
use another prefix and suffix in 18nextify instead in order to avoid this problem

Updated Readme, set translation cache time to 1 day

1.1.1

update readme

Version 1.1.0

-support detection of user language
-support caching of translations