Add HTML to list of supported formats

features/Features-list.md

@@ -1,7 +1,7 @@
 | Feature |  Status  |
 | ------ | ------ |
 |  supported devices  |  Kindle Touch, Kindle Paperwhite, Kobo Glo, Kobo Touch, Kobo Mini, Kobo Aura, Kobo Aura HD, Kobo Aura H2O, Kobo Forma, Kobo Clara HD  |
-| document supported formats |  PDF, DJVU, EPUB, MOBI, PDB, TXT, [ZIP](https://github.com/koreader/koreader/wiki/ZIP), CBT, CBZ, FB2, RTF, CHM, DOC |
+| document supported formats |  PDF, DJVU, EPUB, MOBI, PDB, TXT, [ZIP](https://github.com/koreader/koreader/wiki/ZIP), CBT, CBZ, FB2, RTF, HTML, CHM, DOC |
 | image supported formats |  PNG, JPG, TIFF, GIF, [SVG](https://github.com/koreader/koreader/pull/2832) |
 | native system integration | supported on Kindle devices |
 | Multiswipe gestures | [supported](https://github.com/koreader/koreader/wiki/multiswipes), including multiswipes recorder and editor |