[DOCS-918] link fix (#6813)
[DOCS-918] link fix (#6813)

* link fix

* Update mysql/README.md

Co-authored-by: Christine Chen <021c7f81bc4c0e55dbc6c4b2db8d0ea775f269a0@users.noreply.github.com>

Co-authored-by: Christine Chen <021c7f81bc4c0e55dbc6c4b2db8d0ea775f269a0@users.noreply.github.com>
DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core