Add description for scriptlets exceptions

[anyakushin]

Target CoreLibs version is 1.16

[slavaleleka]

take a look please at related Scriptlets repo changes:
AdguardTeam/Scriptlets@a711e27

[anyakushin]

@slavaleleka what definitely to look at? I think its quite the same except the structure and syntax format

[slavaleleka]

except the structure and syntax format

yes, syntax format is important because there is no difference (except the rule marker with and without @) now for blocking and exception syntax:

rule = [domains] "#%#//scriptlet(" scriptletName arguments ")"
rule = [domains] "#@%#//scriptlet(" scriptletName arguments ")"

also current kb section Syntax describes only blocking syntax:
https://uploads.adguard.org/sl5rr6yTS0XoD9iKXP.png

it could be more explicit and precise:
https://uploads.adguard.org/sl7EWzddeRqXte7z6u.png

[anyakushin]

also current kb section Syntax describes only blocking syntax

It is the same for entire KB, isn't it? Exclusions syntax is mentioned only in Exclusions section that is on the same level as Syntax section. I can make it like it is in scriptlets repo, just wanna be sure that this will not interferee with current KB sections structure

[ameshkov]

Add n note about versions of CoreLibs / AdGuard extension where we support this.