I've had that problem once ><
Here's how (if あなた don't understand something, tell me)
1. write the article
2. if あなた scrool down the page, you'll find
Add 画像 to Your 記事 (optional) 3. After it, you'll see
top image and
Bottom Image.
you'll have to アップロード the image(s) on the one that says "Bottom Image" (if あなた wanna アップロード もっと見る than one click "
Click here to add another image"
4. Chose and アップロード the image
5. scrool to the 記事 again and chose where the image will stay.
6. you'll have to write this: "img1 center, large" (see picture to see how to write correctly)
7. プレビュー to see if あなた wanna change something.
Note: if あなた are adding もっと見る than 1 image, you'll have to do the step 6 もっと見る than once (according to the number of images)
e.g: 2 images.
---------------Text-------------
..............Image.........
--------------Text---------
..............Image.........
etc...
the image is what あなた might see on the プレビュー and
link is what it might look like