By the way, you might want to make this a "Global" block so you can re-use it effortlessly on other sub-pages or anywhere else. Here's a guide from Notion VIP about that:
Create "Global" Notion Blocks
In a variety of circumstances, you may want to use the same block on multiple pages of your workspace. Credits, copyrights and calls to action (CTAs) are just a few examples. With this trick, you can create "global" blocks. Updating one updates them all. Create the initial instance of the block.