Update readme

V0.800.2 - 20220313

Bug Fixed

• fix a bug on progress bar.

V0.800.1 - 20220312

Bug Fixed

• add covers of posts.

• fix the params and now paid post can be download.

• remove the wrong judgement of posts.

V0.800.0 - 20220312

New Api Adapted

Fanbox changes its api. Now we must request a new api to get contents of every post.

Bug Fixed

• fix the bug happened on markdown text when title of post contains special chars.

• fix the bug the response of api return wrong file size, which cause the wrong progress displayed on GUI.

Add filename filter function.
Fix progress bar's wrong display.

Fix the issue that some files(bigger than 147mb) were downloaded separately.

V0.700 - 211004

Feature

• Add support for embed external link.

#### Bug Fixed

• Fix a bug that the STORE compression method not works.
• Fix a bug that the article's image id doesn't match.
• Fix a bug that miss audio files in article.
• Fix a bug when the creator doesn't have a cover.

Other

• Move the update log to a individual file.

[download-logic]fix the download logic to avoid blank image creator.