Small fixes:

• Update README.md for better copy-ability #1823
• Name download() column levels #1795
• Fix history(keepna=False) when repair=True #1824
• Replace empty list with empty pd.Series #1724
• Handle peewee with old sqlite #1827
• Fix JSON error handling #1830 #1833

Thanks: @mreiche @amanlai @molpcs @ange-daumal