[webcomponents] Switched custom spec to respec (#396)

* Now with normative and informative references section
  -> removed dependencies section since it's no longer needed as-is
* Renamed section "About this Document" into "Conformance" to accommodate automatic triggers (such as RFC2119 text)
* Harmonized ES links to use tc39.github.io
* Use CSS3 selectors reference instead of CSS2
* s/pseudoclass/pseudo-class/
* Motivations section now appears first
* Use the linking to definitions of respec
* Use continuous IDL mode
* Switch to experimental style
* Added a manifest file for the automatic publishing system
* Various links added into the headers, eg link to Can I Use?
* Removed dependency to separate style sheet (copied 2 rules inline instead)
* sections Custom Tag Example and Type Extension Example are informative
You can view, comment on, or merge this pull request online at:

  https://github.com/w3c/webcomponents/pull/396

-- Commit Summary --

  * Switched custom spec to respec

-- File Changes --

    A spec/custom/W3CTRMANIFEST (2)
    M spec/custom/index.html (831)

-- Patch Links --

https://github.com/w3c/webcomponents/pull/396.patch
https://github.com/w3c/webcomponents/pull/396.diff

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Reply to this email directly or view it on GitHub:
https://github.com/w3c/webcomponents/pull/396