If the image is relevant to the content of the document, you must supply alternate text that will appear in text-only browsers, and that will appear in other browsers when an image is loading or when image loading is disabled.
Jolic wobraz jo z wopśimjeśim dokumenta relewantny, dejśo alternatiwny tekst pódaś, kótaryž se w tekstowych wobglědowakach pokazujo a to buźo se w drugich wobglědowakach pokazowaś, gaž wobraz se zacytujo abo gaž zacytanje wobrazow jo znjemóžnjone.