Move Emacs documents to //emacs

These documents outline some of my Elisp conventions and ideas. As such,
I think //emacs should host them.

snippets.md

@@ -1,22 +0,0 @@
-# Snippets
-
-Specifying snippets that I plan on defining for most of the programming
-languages with which I work. I hope this will serve as a checklist of language
-constructs I should support when adopting a new language.
-
-## Shared language features
-
-These are language features that should be available across most of the
-languages that I'm hoping to support.
-
-- `ld`: anonymous functions (i.e. lambdas)
-- `fn`: named function definition
-- `var`: variable definition
-
-## Miscellaneous other language KBDs
-
-Some of this is related to language tool must-haves, which may need to be a
-separate document.
-
-- `<leader>d`: Show documentation
-- `<leader>x`: Evaluate expression (works mostly for LISPs)