bug: broken links for test cards / test account numbers #37
Description
Describe the bug
Most links pointing back to test cards are broken
To Reproduce
See e.g. https://github.com/Adyen/adyen-components-js-sample-code/blob/main/src/dropin/index.html#L33
The linked resource no longer exists. Instead of https://docs.adyen.com/developers/development-resources/test-cards/test-card-numbers it should link to https://docs.adyen.com/development-resources/test-cards-and-credentials/test-card-numbers.
Expected behavior
Links should point to existing doc resources :D