Template:Gallery how-to

An easy way to add multiple images to a page is by using the gallery format. Here is an example below preceded by the wikicode. Note that the text for an image caption is after a vertical bar (|). The image names are in a column. Each image name must be at the beginning of a line. For more options such as image sizing, overall gallery title, number of images per row, etc., see:
 * Help:Displaying images

you want regular thumbnail image sizes and you want the captions inside the image box, then you can put the images in table format. You will have to choose the number of rows, and images per row: