[documentation] GS1 Digital Link Standard 1.2.1 ABNF issues

[DevFromDownUnder]

Noticed some issues in latest DL uri spec in the ABNF

4.2 Character sets
It would be better to update this to use the hex representation instead of single quotes, per RFC2234.
DoubleQuote = '"' ; the double-quote character "
DoubleQuote = %x22 ; the double-quote character "

4.10.2 Constructing the query string
Looks like there are typos in two of the param names; with an extra lower case 'a'.
shipToaAdd1Parameter and shipToaAdd2Parameter
shipToAdd1Parameter and shipToAdd2Parameter