Capitalise CSS and Jelly

Author: janfaracik

src/main/resources/io/jenkins/plugins/designlibrary/Validation/index.properties

@@ -6,6 +6,6 @@ title=Form field validation can access values of the nearby input controls, \
   so that the validation of the state name refers to the capital name, and the validation of the city name refers to the state name.
 validation.description=To implement this you need to provide a <code>doCheckXXX</code> method, where XXX is the name of your field. \
   This should return a <code>FormValidation</code> object.
-validation.clazz=There is also the possibility to use client side css validation inside jelly, with the help of <code>clazz=</code>. \
+validation.clazz=There is also the possibility to use client side CSS validation inside Jelly, with the help of <code>clazz=</code>. \
   Existing validations are <code>required</code>, <code>number</code> and <code>positive-number</code>. \
   They can also be combined, e.g. <code>clazz="required number"</code> to validate a mandatory integer field.