Re: Add A Glossary

Thanks for these fixes!  I included all of these.

On 2020-Jun-19, Erik Rijkers wrote:

> And one thing that I am not sure of (but strikes me as a bit odd):
> there are several cases of
> 'are enforced unique'. Should that not be
> 'are enforced to be unique'  ?

I included this change too; I am not too sure of it myself.  If some
English language neatnik wants to argue one way or the other, be my
guest.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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