hooks - updating URLs which pointed to wiki. Close #88

docs/hooks/hook_civicrm_alterMenu.md

docs/hooks/hook_civicrm_caseTypes.md

docs/hooks/hook_civicrm_contactListQuery.md

docs/hooks/hook_civicrm_customFieldOptions.md

docs/hooks/hook_civicrm_optionValues.md

docs/hooks/hook_civicrm_post_case_merge.md

docs/hooks/hook_civicrm_pre_case_merge.md

docs/hooks/hook_civicrm_selectWhereClause.md

docs/hooks/hook_civicrm_tabs.md

docs/hooks/hook_civicrm_tokenValues.md

docs/hooks/hook_civicrm_tokens.md

docs/hooks/hook_civicrm_xmlMenu.md