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.
Move this to your page of choice and select "Turn into" → "Text" to expand