Add Go To File With Line Number as a vim til

vim/go-to-file-with-line-number.md

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+# Go To File With Line Number
+
+I often use `gf` as supported by Vim or with the help of plugins like
+[`rails.vim`](https://github.com/tpope/vim-rails) as a way of quickly
+navigating to existing files. For unloaded files, this loads a buffer with
+the cursor at the top of the buffer. For existing buffers, it opens to that
+buffer with the cursor where it was when you left.
+
+Vim also supports a slightly fancier goto file command, `gF`. If this
+command is used while the cursor is over a file with a line number appended
+to the end, it will not only open up a buffer with that file, it will move
+the cursor to the specified line number.
+
+With this repository, I could try it out by moving the cursor over the
+following text and hitting `gF`.
+
+```text
+README.md:100
+```
+
+This will open up a buffer for `README.md` with the cursor at line 100.
+
+See `:h gF` for more details.