Hi @nadeeka123,
When adding a source for images, first type [source] and then copy the link where the image was taken and paste it inside (). [Source] (link) As per this code. This link is where you need to put the link where you got the picture. Do not leave space between [] and (). The picture below illustrates it even better.
If you added the link correctly as above, it should appear in green as below.
nishadi89 Thank you so much for letting me know and helping me.