examples: Trim .nim files trailing whitespace

via OSX: find . -name '*.nim' -exec sed -i '' -E 's/[[:space:]]+$//' {} +

web/snippets/snippet1.nim

@@ -1,4 +1,4 @@
 import strutils
-echo "Give a list of integers (separated by spaces): ", 
+echo "Give a list of integers (separated by spaces): ",
      stdin.readLine.split.each(parseInt).max,
-     " is the maximum!"
+     " is the maximum!"