Weekly github digest (HTML specs)

Issues
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* w3c/html-aam (+1/-0/💬5)
  1 issues created:
  - Map <option> element to role 'option' when it has a parent <select> element that acts a combobox (by iamrafan)
    https://github.com/w3c/html-aam/issues/149 

  4 issues received 5 new comments:
  - #69 html5 placeholder and aria-placeholder implementation (2 by stes-acc, lazarljubenovic)
    https://github.com/w3c/html-aam/issues/69 
  - #98 Identify elements which support aria-roledescription without an explicit or implicit role (1 by stes-acc)
    https://github.com/w3c/html-aam/issues/98 [AAM] 
  - #51 <dl> role should = list (1 by schne324)
    https://github.com/w3c/html-aam/issues/51 [AAM V2] 
  - #46 HTML-AAM: select element should map to listbox role regardless of presentation (1 by carmacleod)
    https://github.com/w3c/html-aam/issues/46 [AAM V2] 




Repositories tracked by this digest:
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* https://github.com/w3c/html
* https://github.com/w3c/html-aam
* https://github.com/w3c/html-aria
* https://github.com/w3c/html-extensions
* https://github.com/w3c/html-landscape
* https://github.com/w3c/html-reference
* https://github.com/w3c/aria-in-html