Heres Reeces image posted inline
Format for posting gyazos is [img]PASTE GYAZO LINK WITH NO SPACES.png[/img]
so basically add [img] to the front of the link then add .png[/img] to the end of it in this case the link text is https://gyazo.com/7a47538344fb2b24dec0e70271cf7277 make sure theres a space before the first [ and after the last ] and it should work.
heres a gyazo of how the text should look before you post and it turns into the image