wip(emacs): Abstract strategy-running

- Show docs and goto def are confirmed working

users/crumb/programs/emacs/lib/syd-strategies-repl.el

@@ -0,0 +1,8 @@
+;; syd-strategies-repl.el -*- lexical-binding: t; -*-
+
+;;;###autoload
+(define-minor-mode syd-repl-mode
+  "A minor mode for repl buffers.  One use is to universally customise the
+display of all repl buffers.")
+
+(provide 'syd-strategies-repl)