pull help message from readme

ui.nim

@@ -2,22 +2,12 @@ import os, math, strutils, strformat
 import fixedseq, game, simulation
 
 
-const help = 
-  """cup - Probability calculator for the board game CamelUp
-
-Usage: 
-  cup [-i] SPACE:STACK [...SPACE:STACK] [DICE]
-
-SPACE refers to a numbered board space (1-16).
-STACK refers to a stack of camel colors from bottom to top, e.g. 
-      YBR (Yellow, Blue, Red, with Red on top).
-DICE refers to the set of dice that have already been rolled,
-     e.g. GPR (Green, Purple, Red)
-
-Options:
-  -i      Interactive mode (currently unimplemented)
-  -h      Show this message and exit
-"""
+const help = block:
+  # can't use regex, fortunately we are looking for a straightforward separator
+  let readme = slurp("./README.md")
+  let endPos = rfind(readme, "```") - 1
+  let startPos = rfind(readme, "```", last = endPos) + 4
+  readme[startPos..endPos]
 
 
 # =============================