change location of banners

_config.yml

@@ -23,7 +23,7 @@ baseurl: "/howto-cards"  # the subpath of your site, e.g. /gitlab-repository-nam
 url: "https://r3.pages.uni.lu"  # the base hostname & protocol for your site, e.g. http://gitlab-namespace-name.pages.uni.lu/
 
 # Banner settings
-banner: labcard  # When you have custom images, change this setting's value to the name of the folder containing them
+banner: howto-card  # When you have custom images, change this setting's value to the name of the folder containing them
 logo: small  # Change to "big" (without quotas) in case of having broad logo
 date: "2019"