fixed test failure in hello/index.rst (2. attempt)
fixed test failure in hello/index.rst (2. attempt)

lino-framework/book,khchine5/book,khchine5/book,lino-framework/book,lsaffre/lino_book,khchine5/book,lino-framework/book,lino-framework/book,lsaffre/lino_book,lsaffre/lino_book