Make string/character quoting rules explicit

[sietse]

A string literal must be written in single quotes.
A string literal must be written in double quotes.
The documentation implied this, but not very clearly;
now it is explicit.

[ivarne]

A string literal can be written in double quotes, or tripple double quotes """This is a string literal where I dont have to escape " characters."""

[StefanKarpinski]

These changes may be a bit forceful in tone for my style, which tends to be a bit understated, but you're absolutely right that this point could be make a bit more clearly. Also, I love your Moomin avatar :-)

[sietse]

And I love your Viking helmet. :-)

In many other languages, 'a', and "a" would amount to the same thing, so I thought that just this once I'd put in a 'must' to prevent the user from going astray and trying to write a character as "a". But you're right that the italics are too much, so I took those out. Do you want a further rewrite, or will this do?

[stevengj]

Grammar: "Char values", not "A Char values. And I would phrase it:

• Char literal values are delimited by single quotes: