Broken cross-reference in [cluster] configuration

[natevw]

In the q part of the "Configuring Clustering" documentation page (https://docs.couchdb.org/en/2.3.0/config/cluster.html#cluster/q) there is a note "The value of q can also be overridden on a per-DB basis, at DB creation time." followed by a "See also" callout.

The contents of that call-out are broken, and do not link to anything. Instead the box literally says:

httpdomain:put:PUT /{db} </{db}>

(Compare to the placement section where a nice link to "Placing a database on specific nodes" is provided in a similar callout.)

[wohali]

Thanks for all the bug reports, @natevw. Pull requests encouraged and welcome!