Added all HTML Attributes list

Miscellaneous/web/html-attributes.txt

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+accept
+accept-charset
+accesskey
+action
+align
+allow
+alt
+async
+autocapitalize
+autocomplete
+autofocus
+autoplay
+buffered
+capture
+charset
+checked
+cite
+class
+code
+codebase
+cols
+colspan
+content
+contenteditable
+contextmenu
+controls
+coords
+crossorigin
+csp
+data
+datetime
+decoding
+default
+defer
+dir
+dirname
+disabled
+download
+draggable
+dropzone
+enctype
+enterkeyhint
+for
+form
+formaction
+formenctype
+formmethod
+formnovalidate
+formtarget
+headers
+hidden
+high
+href
+hreflang
+http-equiv
+icon
+id
+importance
+integrity
+itemprop
+kind
+label
+lang
+language
+list
+loop
+low
+max
+maxlength
+minlength
+media
+min
+multiple
+muted
+name
+novalidate
+open
+optimum
+pattern
+ping
+placeholder
+poster
+preload
+readonly
+referrerpolicy
+rel
+required
+reversed
+rows
+rowspan
+sandbox
+scope
+scoped
+selected
+shape
+size
+sizes
+slot
+span
+spellcheck
+src
+srcdoc
+srclang
+srcset
+start
+step
+style
+summary
+tabindex
+target
+title
+translate
+Text
+type
+usemap
+value
+width
+wrap