Add Split Different as a vim til.

vim/split-different.md

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+# Split Different
+
+Vim's defaults for `:split` and `:vsplit` are to open the splits above and
+to the left, respectively. I prefer for them to the split below and to the
+right, respectively. To get `:split` to split below:
+
+```
+:set splitbelow
+```
+
+and to get `:vsplit` to split to the right:
+
+```
+:set splitright
+```
+
+Add those two lines to your `.vimrc` to have them set that way all the time.
+
+If you have them set as such in `.vimrc` and want to temporarily revert the
+setting for the current file, type:
+
+```
+:set nosplitbelow
+```
+
+or
+
+```
+:set nosplitright
+```
+
+as commands.