Meta: enable PR preview, add editor config, and link web-platform-tests

See whatwg/meta#16.

Author: annevk

.editorconfig

@@ -0,0 +1,16 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+indent_size = 1
+indent_style = space
+trim_trailing_whitespace = true
+max_line_length = 100
+
+[Makefile]
+indent_style = tab
+
+[.travis.yml]
+indent_size = 2

.gitattributes

@@ -0,0 +1,2 @@
+*    text=auto
+*.bs diff=html linguist-language=HTML

.pr-preview.json

@@ -0,0 +1,15 @@
+{
+    "src_file": "encoding.bs",
+    "type": "bikeshed",
+    "params": {
+        "force": 1,
+        "md-status": "LS-COMMIT",
+        "md-h1": "URL <small>(<a href=\"{{ pull_request.html_url }}\">PR #{{ pull_request.number }}</a>)</small>",
+        "md-warning": "Commit {{ short_sha }} {{ pull_request.head.repo.html_url }}/commit/{{ sha }} replaced by {{ config.ls_url }}",
+        "md-title": "{{ config.title }} (Pull Request Snapshot #{{ pull_request.number }})",
+        "md-Text-Macro": "SNAPSHOT-LINK {{ config.back_to_ls_link }}"
+    },
+    "ls_url": "https://encoding.spec.whatwg.org/",
+    "title": "Encoding Standard",
+    "back_to_ls_link": "<a href=\"https://encoding.spec.whatwg.org/\" id=\"commit-snapshot-link\">Go to the living standard</a>"
+}

README.md

@@ -39,5 +39,5 @@ If you can commit to this repository, see the
 
 ### Tests
 
-Tests can be found in the `encoding/` directory of the
-[web-platform-tests repository](https://github.com/w3c/web-platform-tests).
+Tests can be found in the `encoding/` directory of
+[web-platform-tests](https://github.com/w3c/web-platform-tests).

encoding.bs

@@ -14,6 +14,7 @@ Markup Shorthands: css off
 !Commits: <a href=https://github.com/whatwg/encoding/commits>GitHub whatwg/encoding/commits</a>
 !Commits: [SNAPSHOT-LINK]
 !Commits: <a href=https://twitter.com/encodings>@encodings</a>
+!Tests: <a href=https://github.com/w3c/web-platform-tests/tree/master/encoding>web-platform-tests encoding/</a> (<a href=https://github.com/w3c/web-platform-tests/labels/encodingh>ongoing work</a>)
 !Translation (non-normative): <span title=Japanese><a href=https://triple-underscore.github.io/Encoding-ja.html lang=ja hreflang=ja rel=alternate>日本語</a></span>
 Translate IDs: dictdef-textdecoderoptions textdecoderoptions,dictdef-textdecodeoptions textdecodeoptions
 </pre>