Copyedit some text passages

- Table of content → Table of contents
- Sentence case in README
- natives form elements → native form elements

README.md

@@ -183,7 +183,7 @@ Pico can be used without custom CSS for quick or small projects. However, it’s
 - [Loading](https://picocss.com/docs/loading.html)
 - [Tooltips](https://picocss.com/docs/tooltips.html)
 
-## Browser Support
+## Browser support
 
 Pico is designed and tested for the latest stable Chrome, Firefox, Edge, and Safari releases. It does not support any version of IE, including IE 11.
 

docs/src/_sidebar.html

@@ -9,7 +9,7 @@
         <title>Collapse</title>
         <path fill-rule="evenodd" d="M1 8a.5.5 0 0 1 .5-.5h13a.5.5 0 0 1 0 1h-13A.5.5 0 0 1 1 8zm7-8a.5.5 0 0 1 .5.5v3.793l1.146-1.147a.5.5 0 0 1 .708.708l-2 2a.5.5 0 0 1-.708 0l-2-2a.5.5 0 1 1 .708-.708L7.5 4.293V.5A.5.5 0 0 1 8 0zm-.5 11.707l-1.146 1.147a.5.5 0 0 1-.708-.708l2-2a.5.5 0 0 1 .708 0l2 2a.5.5 0 0 1-.708.708L8.5 11.707V15.5a.5.5 0 0 1-1 0v-3.793z"></path>
       </svg>
-      Table of content
+      Table of contents
     </a>
     <details>
       <summary>Getting started</summary>

docs/src/forms.html

@@ -21,7 +21,7 @@
             <h2>All form elements are fully responsive in pure semantic HTML, allowing forms to scale gracefully across devices and viewports.</h2>
           </hgroup>
           <p>Inputs are <code><i>width</i>: <u>100%</u>;</code> by default. You can use <code>.grid</code> inside a form.</p>
-          <p>All natives form elements are fully customizable and themeable with CSS variables.</p>
+          <p>All native form elements are fully customizable and themeable with CSS variables.</p>
           <article aria-label="Form example">
             <form>
               <div class="grid">