add "read further" in some chapters i.e. GO Queries

[wey-gu]

for instance, some fresh users cannot figure out we could YIELD properties of the tag, we could add "further read" on

• prop ref characters
• pipeline
• "schema functions"

etc, to enable users to know what they should know next.

For now, some of the information is hidden in some examples(which is great), but maybe we could do it further.

[wey-gu]

Something like could be considered to be added.