updated help screenshots

vipra-ui/app/html/help/articles.show.entities.html

vipra-ui/app/html/help/articles.show.words.html

vipra-ui/app/html/help/entities.show.articles.html

vipra-ui/app/html/help/topics.show.articles.html

vipra-ui/app/html/help/topics.show.sequences.html

vipra-ui/app/html/help/words.show.articles.html

vipra-ui/app/html/help/words.show.topics.html

vipra-ui/app/img/ui-article-entities-hover.png

vipra-ui/app/img/ui-article-entities.png

vipra-ui/app/img/ui-article-hover.png

vipra-ui/app/img/ui-article-words-hover.png

vipra-ui/app/img/ui-article-words.png

vipra-ui/app/img/ui-article.png

vipra-ui/app/img/ui-articles-hover.png

vipra-ui/app/img/ui-articles.png

vipra-ui/app/img/ui-entities-hover.png

vipra-ui/app/img/ui-entities.png

vipra-ui/app/img/ui-entity-articles-hover.png

vipra-ui/app/img/ui-entity-articles.png

vipra-ui/app/img/ui-entity-hover.png