tools: update remark configuration

Specify the plugin name as 'remark-lint/', as new remark-cli refused to
find it when cwd is different from the directory where node_modules are
put. Trailing slash fixes this, as the plugin name gets treated as a
path, so `require` works on it.

Explicitly specify the list of rules we want to enable, as the new
remark-lint is opt-in and doesn't come with any rules by default.

Reorder the rules alphabetically.

PR-URL: #8666
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>

.remarkrc

@@ -1,34 +1,62 @@
 {
   "plugins": {
-    "remark-lint": {
+    "remark-lint/": {
+      "blockquote-indentation": 2,
+      "checkbox-character-style": { "checked": "x", "unchecked": " " },
+      "checkbox-content-indent": true,
       "code-block-style": false,
       "definition-case": false,
+      "definition-spacing": true,
       "emphasis-marker": false,
+      "fenced-code-flag": true,
+      "fenced-code-marker": "`",
+      "file-extension": "md",
+      "final-definition": true,
+      "final-newline": true,
       "first-heading-level": false,
+      "hard-break-spaces": true,
       "heading-increment": false,
-      "list-item-content-indent": false,
+      "heading-style": "atx",
+      "link-title-style": false,
       "list-item-bullet-indent": false,
+      "list-item-content-indent": false,
       "list-item-indent": false,
       "list-item-spacing": false,
       "maximum-heading-length": false,
       "maximum-line-length": false,
+      "no-auto-link-without-protocol": true,
+      "no-blockquote-without-caret": true,
       "no-consecutive-blank-lines": false,
+      "no-duplicate-definitions": true,
       "no-duplicate-headings": false,
       "no-emphasis-as-heading": false,
       "no-file-name-articles": false,
+      "no-file-name-consecutive-dashes": true,
       "no-file-name-irregular-characters": false,
+      "no-file-name-mixed-case": false,
+      "no-file-name-outer-dashes": true,
+      "no-heading-content-indent": true,
+      "no-heading-indent": true,
       "no-heading-punctuation": false,
       "no-html": false,
       "no-inline-padding": false,
-      "no-shell-dollars": false,
-      "no-shortcut-reference-link": false,
       "no-literal-urls": false,
       "no-missing-blank-lines": false,
       "no-multiple-toplevel-headings": false,
+      "no-shell-dollars": false,
+      "no-shortcut-reference-image": true,
+      "no-shortcut-reference-link": false,
+      "no-table-indentation": true,
+      "no-tabs": true,
       "no-undefined-references": false,
+      "no-unused-definitions": true,
       "ordered-list-marker-style": false,
       "ordered-list-marker-value": false,
+      "rule-style": false,
+      "strong-marker": false,
+      "table-cell-padding": "padded",
       "table-pipe-alignment": false,
+      "table-pipes": true,
       "unordered-list-marker-style": false
     }
   }