add instructions for importing example data
add instructions for importing example data

fbaumgardt/arethusa,fbaumgardt/arethusa,fbaumgardt/arethusa,latin-language-toolkit/arethusa,PonteIneptique/arethusa,PonteIneptique/arethusa,alpheios-project/arethusa,latin-language-toolkit/arethusa,alpheios-project/arethusa,Masoumeh/arethusa,alpheios-project/arethusa,Masoumeh/arethusa