Missing mapping for r

[mikehaertl]

The documentation states:

targets.vim/doc/targets.txt

Line 77 in 642d3a4

We borrowed the aliases `r` and `a` from the |surround| plugin by Tim Pope.

But r is not working for me. It's also not listed in the defaults:

targets.vim/doc/targets.txt

Lines 727 to 763 in 642d3a4

	This function can be used to modify an internal dictionary used to control the
	mappings. The default value of that dictionary is:
	{~
	\ '(': {'pair': [{'o': '(', 'c': ')'}]},~
	\ ')': {'pair': [{'o': '(', 'c': ')'}]},~
	\ '{': {'pair': [{'o': '{', 'c': '}'}]},~
	\ '}': {'pair': [{'o': '{', 'c': '}'}]},~
	\ 'B': {'pair': [{'o': '{', 'c': '}'}]},~
	\ '[': {'pair': [{'o': '[', 'c': ']'}]},~
	\ ']': {'pair': [{'o': '[', 'c': ']'}]},~
	\ '<': {'pair': [{'o': '<', 'c': '>'}]},~
	\ '>': {'pair': [{'o': '<', 'c': '>'}]},~
	\ '"': {'quote': [{'d': '"'}]},~
	\ "'": {'quote': [{'d': "'"}]},~
	\ '`': {'quote': [{'d': '`'}]},~
	\ ',': {'separator': [{'d': ','}]},~
	\ '.': {'separator': [{'d': '.'}]},~
	\ ';': {'separator': [{'d': ';'}]},~
	\ ':': {'separator': [{'d': ':'}]},~
	\ '+': {'separator': [{'d': '+'}]},~
	\ '-': {'separator': [{'d': '-'}]},~
	\ '=': {'separator': [{'d': '='}]},~
	\ '~': {'separator': [{'d': '~'}]},~
	\ '_': {'separator': [{'d': '_'}]},~
	\ '*': {'separator': [{'d': '*'}]},~
	\ '#': {'separator': [{'d': '#'}]},~
	\ '/': {'separator': [{'d': '/'}]},~
	\ '\': {'separator': [{'d': '\'}]},~
	\ '|': {'separator': [{'d': '|'}]},~
	\ '&': {'separator': [{'d': '&'}]},~
	\ '$': {'separator': [{'d': '$'}]},~
	\ 't': {'tag': [{}]},~
	\ 'a': {'argument': [{'o': '[([]', 'c': '[])]', 's': ','}]},~
	\ 'b': {'pair': [{'o':'(', 'c':')'}, {'o':'[', 'c':']'}, {'o':'{', 'c':'}'}]},~
	\ 'q': {'quote': [{'d':"'"}, {'d':'"'}, {'d':'`'}]},~
	\ }~

I had to add it with:

autocmd User targets#mappings#user call targets#mappings#extend({
    \ 'r': {'pair': [{'o':'[', 'c':']'}]}
    \ })

So I think either the docs should be updated or the mapping added.

There's also a little typo (incude) here:

targets.vim/doc/targets.txt

Line 222 in 642d3a4

|targets-quote-seek|. Unlike Vim's quote text objects, this incudes no