Merge pull request #461 from emmanuel-keller/master

Doc: Replace wrong encoded pipes: %257C by %7C
Merge pull request #462 from emmanuel-keller/master

Documentation, fix few page titles
Merge pull request #463 from emmanuel-keller/master

Fix and enrich documentation labels
Merge pull request #464 from emmanuel-keller/master

Fix documentation labels
Update _prefix.md
Update build%7Cbuilding_auto-completion_dictionary%7C3.md
Update create%2C_update_%7Ccreating_or_updating_an_autocompletion_item%7C1.md
Update delete%7Cdeleting_an_auto-completion_item%7C5.md
Update query%7Cmake_an_auto-completion_query%7C4.md
Update list%7Cget_the_listing_of_the_crawler_items%7C1.md
Update list%7Clist_exclusion_pattern%7C2.md
Update list%7Clist_inclusion_pattern%7C2.md
Update start%7CWEB_crawler%3A_start%7C1.md
Update status%7CWEB_crawler%3A_status%7C3.md
Update stop%7CWEB_crawler%3A_stop%7C2.md
Update put_json%7Cinserting_documents_using_JSON%7C1.md
Update delete_by_JSON%7Cdeleting_document_using_JSON%7C2.md
Update delete_by_field%7Cdeleting_document_by_field_content%7C1.md
Update create%2C_update%7Ccreating_or_updating_fields%7C3.md
Update delete%7Cdeleting_fields%7C4.md