Runtime file updates.
diff --git a/runtime/doc/index.txt b/runtime/doc/index.txt
index 07c5768..da56816 100644
--- a/runtime/doc/index.txt
+++ b/runtime/doc/index.txt
@@ -1399,6 +1399,7 @@
|:ruby| :rub[y] execute Ruby command
|:rubydo| :rubyd[o] execute Ruby command for each line
|:rubyfile| :rubyf[ile] execute Ruby script file
+|:rundo| :rund[o] read undo information from a file
|:runtime| :ru[ntime] source vim scripts in 'runtimepath'
|:rviminfo| :rv[iminfo] read from viminfo file
|:substitute| :s[ubstitute] find and replace text
@@ -1564,6 +1565,7 @@
|:wq| :wq write to a file and quit window or Vim
|:wqall| :wqa[ll] write all changed buffers and quit Vim
|:wsverb| :ws[verb] pass the verb to workshop over IPC
+|:wundo| :wu[ndo] write undo information to a file
|:wviminfo| :wv[iminfo] write to viminfo file
|:xit| :x[it] write if buffer changed and quit window or Vim
|:xall| :xa[ll] same as ":wqall"