chore: tune VSCode settings (#1140)

Author: dkrutskikh

.vscode/settings.json

@@ -57,4 +57,14 @@
         "source.fixAll": true,
         "source.organizeImports": true,
     },
+    "markdown.validate.enabled": true,
+    "markdown.preview.typographer": true,
+    "markdown.preview.breaks": true,
+    "markdown.validate.fileLinks.enabled": "error",
+    "markdown.validate.fragmentLinks.enabled": "error",
+    "markdown.validate.referenceLinks.enabled": "error",
+    "markdown.validate.duplicateLinkDefinitions.enabled": "error",
+    "markdown.validate.unusedLinkDefinitions.enabled": "error",
+    "markdown.updateLinksOnFileMove.enabled": "prompt",
+    "markdown.occurrencesHighlight.enabled": true,
 }