Downloads: Make it easier to know which annotations are included in which corpus
suggestion: move Exmaralda below PAULA/relANNIS so that it doesn't look like the default/best download.
EXMARaLDA (all manual and automatic annotation on tokens/spans (i.e., everything except dependency parses), no metadata)
PAULA (all annotations and metadata)
relANNIS (all annotations and metadata)
SOLR (all metadata, plain-text learner texts and target hypotheses with no further annotation)