Anchor names must follow this naming scheme to be accepted as valid:
  1. One word (no spaces)
  2. Use only letters
  3. Cannot contain special characters (such as @, !, or &) or numbers.
These are examples of invalid anchor names:
  1. 1
  2. Anchor 1
  3. Anchor!
These are examples of valid anchor names:
  1. Anchor
  2. Anchorone
  3. AnchorTwo