You can attach images with your articles very easily.First write articles completely ,then mark the option Add Attachmentoption,then click submit.After you can Choose uploaded image ,then click submit,you will got link of your image,then copy the image link and paste in your article where you want display the image.
More help refer following links
Adding images to your articles is very easy. Primarily you type the article and submit it. Then open your article. You can see Edit and Attachment options below your article's title. You click on 'Attachment'. Then a new page will comes, there you click 'Add Attachment'. Then upload the picture from your PC by using the browsing option. Then click on 'Submit Attachment'. Now you can see a new page with the uploaded picture with three options. If you want to attach the picture between the article, copy the second one(Copy third one if you want to paste a small- sized image). Then go to your article again and click on the 'Edit' option. Now paste the image URL link to where you want to place your image.
The default alignment of the image is left. You can change it as center or right by changing the 'align=left' to 'right' or 'center'.
I think you got it very clear about attaching image. Now let's improve your article with relevant images.