Add some docs for jsx-child-element-spacing

docs/rules/jsx-child-element-spacing.md

@@ -0,0 +1,45 @@
+# Enforce or disallow spaces inside of curly braces in JSX attributes and expressions. (react/jsx-curly-spacing)
+
+## Rule Details
+
+Since React removes extraneous new lines between elements when possible,
+it is possible to end up with inline elements that are not rendered with spaces between them and adjacent text.
+This is often indicative of an error, so this rule attempts to detect
+
+The following patterns are considered warnings:
+
+```jsx
+<div>
+  Here is a
+  <a>link</a>
+</div>
+```
+
+```jsx
+<div>
+  <b>This text</b>
+  is bold
+</div>
+```
+
+The following patterns are **not** considered warnings:
+
+```jsx
+<div>
+  Spacing is
+  {' '}
+  <a>explicit</a>
+</div>
+```
+
+```jsx
+<div>
+  Lack of spacing is{/*
+  */}<a>explicit</a>
+</div>
+```
+
+## When Not To Use It
+
+You can turn this rule off if you are not concerned with inline elements appearing adjacent to text,
+or if you always explicitly include `{' '}` between elements to denote spacing.

lib/rules/jsx-child-element-spacing.js

@@ -1,5 +1,7 @@
 'use strict';
 
+const docsUrl = require('../util/docsUrl');
+
 // This list is taken from https://developer.mozilla.org/en-US/docs/Web/HTML/Inline_elements
 const INLINE_ELEMENTS = new Set([
   'a',
@@ -40,7 +42,8 @@ module.exports = {
     docs: {
       description: 'Ensures inline tags are not rendered without spaces between them',
       category: 'Stylistic Issues',
-      recommended: false
+      recommended: false,
+      url: docsUrl('jsx-child-element-spacing')
     },
     fixable: false,
     schema: [