loongson/pypi: links for dash-wordcloud

loongson/mirror dash_wordcloud-0.3.4.tar.gz
loongson/mirror dash_wordcloud-0.3.3.tar.gz
loongson/mirror dash_wordcloud-0.3.1.tar.gz
loongson/mirror dash_wordcloud-0.3.0.tar.gz
loongson/mirror dash_wordcloud-0.2.1.tar.gz
loongson/mirror dash_wordcloud-0.2.0.tar.gz