Add Backspace Options as a vim til.

README.md

@@ -289,6 +289,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Add Custom Dictionary Words](vim/add-custom-dictionary-words.md)
 - [Alternate Files With vim-rails](vim/alternate-files-with-vim-rails.md)
 - [Amend Commits With Fugitive](vim/amend-commits-with-fugitive.md)
+- [Backspace Options](vim/backspace-options.md)
 - [Beginning And End Of Previous Change](vim/beginning-and-end-of-previous-change.md)
 - [The Black Hole Register](vim/the-black-hole-register.md)
 - [Breaking The Undo Sequence](vim/breaking-the-undo-sequence.md)

vim/backspace-options.md

@@ -0,0 +1,25 @@
+# Backspace Options
+
+The `backspace` option determines the behavior of pressing the backspace key
+(`<BS>`). By default, Vim's `backspace` option is set to an empty list.
+There are three values that can be added that each independently alter the
+behavior of the backspace key. These are `indent`, `eol`, and `start`.
+
+When `indent` is included, you can backspace over indentation from
+`autoindent`. Without it, Vim will not allow you to backspace over
+indentation.
+
+When `eol` is included, you can backspace over an end of line (eol)
+character. If the cursor is at the first position of a line and you hit
+backspace, it will essentially be joined with the line above it. Without
+`eol`, this won't happen.
+
+When `start` is included, you can backspace past the position where you
+started Insert mode. Without `start`, you can enter Insert mode, type a bit,
+and then when backspacing, only delete back as far as the start of Insert
+mode.
+
+The `backspace` default is absurd, you are going to want to add all of the
+above to your Vim settings.
+
+See `:h 'backspace'` for more details.