chore: updating link to newer viz plugin blog post (#18707)
chore: updating link to newer viz plugin blog post (#18707)

* chore: updating link to newer viz plugin blog post

* adding official docs link as well.

* another teensy text tweak
zhouyao1994/incubator-superset,airbnb/caravel,zhouyao1994/incubator-superset,airbnb/caravel,airbnb/caravel,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,airbnb/caravel,zhouyao1994/incubator-superset