Docs: Fix broken table rows and related lint rule

Close #4200

Author: tiffon

.markdownlintrc

@@ -1,6 +1,7 @@
 {
     "MD013": {
-        "code_blocks": false
+        "code_blocks": false,
+        "tables": false
     },
     "MD014": false,
     "MD026": {

packages/hint/docs/user-guide/concepts/hints.md

@@ -80,20 +80,11 @@ allowed `severity` ratings.
 
 | `Severity` value | Details |
 |:--- |:--- |
-| `off` | The `hint` is not run. The same as deleting the `hint` from the
-`.hintrc`. |
-| `error` | If the `hint` finds a major issue that affects one or more
-targeted browsers. The specified content is broken and you should fix
-immediately. |
-| `warning` | If the `hint` finds an issue. The specified content is a problem
-that you should investigate and fix. The issue may not cause problems in
-practice. |
-| `hint` | If the `hint` finds a minor issue, such as something to fix. The
-specified content should be tracked and may cause problems in the future. The
-issue does not cause problems, but may become a `warning` in the future. |
-| `information` | The `hint` provides information. The specified content is
-highlighted since it is relevant to you.  The information may help identify
-parts of a feature or provide instances of a feature for tracking. |
+| `off` | The `hint` is not run. The same as deleting the `hint` from the `.hintrc`. |
+| `error` | If the `hint` finds a major issue that affects one or more targeted browsers. The specified content is broken and you should fix immediately. |
+| `warning` | If the `hint` finds an issue. The specified content is a problem that you should investigate and fix. The issue may not cause problems in practice. |
+| `hint` | If the `hint` finds a minor issue, such as something to fix. The specified content should be tracked and may cause problems in the future. The issue does not cause problems, but may become a `warning` in the future. |
+| `information` | The `hint` provides information. The specified content is highlighted since it is relevant to you.  The information may help identify parts of a feature or provide instances of a feature for tracking. |
 
 You may configure hints using either the array or object syntax.
 

packages/hint/docs/user-guide/configuring-webhint/summary.md

@@ -21,11 +21,8 @@ hint configuration properties, which are defined in the following table.
 |:--- |:--- |
 | `connector` | How to access the resources. |
 | `formatters` | How to output the results. Multiple instances may exist. |
-| `parsers` | How to handle special files such as stylesheets, JavaScript,
-manifest, and so on.  Multiple instances may exist. |
-| `hints` | What to test for and the
-[severity][UserGuideConceptsHintsHintConfiguration] it should have. Multiple
-instances may exist. |
+| `parsers` | How to handle special files such as stylesheets, JavaScript, manifest, and so on.  Multiple instances may exist. |
+| `hints` | What to test for and the [severity][UserGuideConceptsHintsHintConfiguration] it should have. Multiple instances may exist. |
 
 For additional information about `severity` and hint configurations, go to
 [Hint configuration[UserGuideConceptsHintsHintConfiguration].