docs(tag-check): Add example and explain all options (#1383)

Author: hyperupcall

docs/user-guide/rules/tags-check.md

@@ -3,7 +3,61 @@ id: tags-check
 title: tags-check
 ---
 
-Allowing specify rules for any tag and validate that
+Check if particular tags are self-closing or must include or exclude particular tags.
+
+Level: `error`
+
+## Config value
+
+1. true: enable rule
+2. false: disable rule
+3. {}: configuration object, mapping values of tags to their respective configuration. Tags configuration can have properties of:
+
+`selfclosing`
+
+If an element is or is not self-closing, when it otherwise should be.
+
+Level: `warn`
+
+`attrsRequired`
+
+If an element is missing an attribute that should exist.
+
+Level: `error`
+
+`redundantAttrs`
+
+If an element has an attribute that is not necessary.
+
+Level: `error`
+
+`attrsOptional`
+
+If an element has an attribute that is not included in the allowable set.
+
+Level: `error`
+
+### Example
+
+```json
+{
+  ...
+  "tags-check": {
+    "a": {
+      "selfclosing": true,
+      "attrsRequired": ["href", "title"],
+      "redundantAttrs": ["alt"],
+    }
+  },
+  "script": {
+    "attrsOptional": [
+      ["async", "async"],
+      ["defer", "defer"],
+    ],
+  },
+  ...
+}
+```
 
 The following pattern are **not** considered violations:
 
@@ -15,7 +69,7 @@ The following pattern are **not** considered violations:
 <img src="bbb" title="aaa" alt="asd" />
 ```
 
-The following pattern is considered violation:
+The following pattern is considered a violation:
 
 <!-- prettier-ignore -->
 ```html