fix: docs broken encoding type link (#7533)
fix: docs broken encoding type link (#7533)

The anchor `type` no longer exists on /docs/encoding.html

The "Type" link on the "Encoding" page points to /docs/type.html.
Update this page to point to the same location.
uwdata/vega-lite,vega/vega-lite,vega/vega-lite,uwdata/vega-lite,uwdata/vega-lite,uwdata/vega-lite,vega/vega-lite,vega/vega-lite,uwdata/vega-lite,vega/vega-lite