Add Opening Man Pages In Vim as a vim til.

vim/opening-man-pages-in-vim.md

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+# Opening Man Pages In Vim
+
+In [Quick Man Pages](vim/quick-man-pages.md), I explained how the
+`ft-man-plugin` allows you to quickly open man pages with `K`. For times
+when the particular command isn't in the buffer or the command contains a
+hyphen, you can instead use `:Man`. With the `ft-man-plugin` enabled, you
+can use `:Man` with the name of any command that has a manual page and the
+respective man page will be opened in a split buffer. For example, check out
+`git log` with:
+
+```
+:Man git-log
+```
+
+If you don't want the first manual entry, provide a specific number. For
+instance, you can open the `echo(3)` man page with:
+
+```
+:Man 3 echo
+```
+
+See `:h :Man` for more details.