documentation updates

tools/restorecc.nim

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+
+import os, strutils
+
+proc main(dir: string, wanted: string) =
+  for kind, path in walkDir(dir):
+    case kind
+    of pcFile:
+      let name = extractFilename(path)
+      if name == wanted:
+        let newLoc = path.replace("mingw_backup", "mingw")
+        echo "creating ", newLoc
+        copyFile(path, newLoc)
+    of pcDir: main(path, wanted)
+    else: discard
+
+main("dist/mingw_backup", paramStr(1))