Fix examples

Fix examples:
The following example code was fixed

find_link had find_link_dom
find_all_links had find_link_dom
find_all_links_dom had find_link_dom
Fix examples

Fix examples:
The following example code was fixed

find_link had find_link_dom
find_all_links had find_link_dom
find_all_links_dom had find_link_dom
Fix examples in POD

find_all_links_dom
Merge pull request #4 from MartinMcGrath/master

Fix examples in READMEs and POD