Bad link: 2i2c cloud native formats link

[lwasser]

In the pangeo page -- * At ./_build/html/partners/pangeo.html:532:

External link https://docs.2i2c.org/user/topics/data/cloud/#cloud-native-formats failed (status code 404)

it seems like the link is now https://docs.2i2c.org/user/topics/data/object-storage/

this link has moved multiple times. we can update it now but may want to unlink if it is moved again!