message: Update Manifest docs
diff: @@ -168,7 +168,7 @@ readme = "README.md"
  If no value is specified for this field, and a file named `README.md`,
  `README.txt` or `README` exists in the package root, then the name of that
  file will be used. You can suppress this behavior by setting this field to
  -`"false"`.
  +`false`.
  #### The `homepage` field
  