Linter: Use full rule names and tighten rules

.markdownlint.json

@@ -1,18 +1,18 @@
 {
     "default": true,
-    "MD003": { "style": "atx" },
-    "MD007": { "indent": 4 },
-    "MD012": false,
-    "MD013": false,
-    "MD025": false,
-    "MD026": false,
-    "MD033": false,
-    "MD034": false,
-    "MD036": false,
-    "MD040": false,
-    "MD041": false,
-    "MD046": { "style": "fenced" },
-    "MD047": false,
+    "header-style": { "style": "atx" },
+    "ul-indent": { "indent": 4 },
+    "no-multiple-blanks": true,
+    "line-length": false,
+    "single-h1": false,
+    "no-trailing-punctuation": false,
+    "no-inline-html": true,
+    "no-bare-urls": false,
+    "no-emphasis-as-header": false,
+    "fenced-code-language": true,
+    "first-line-h1": false,
+    "code-block-style": { "style": "fenced" },
+    "single-trailing-newline": true,
     "no-hard-tabs": true,
     "no-trailing-spaces": true,
     "list-marker-space": false,