Add all of prism not just core to demos (Fixes #81); Replace lang with language in README (Fixes #83)

Author: WebCoder49

README.md

@@ -118,13 +118,13 @@ The next step is to set up a `template` to link `code-input` to your syntax-high
 To see a full list of plugins and their functions, please see [plugins/README.md](./plugins/README.md).
 
 ### 4. Using the component
-Now that you have registered a template, you can use the custom `<code-input>` element in HTML. If you have more than one template registered, you need to add the template name as the `template` attribute. With the element, using the `lang` attribute will add a `language-{value}` class to the `pre code` block. You can now use HTML attributes and events to make your element as simple or interactive as you like! 
+Now that you have registered a template, you can use the custom `<code-input>` element in HTML. If you have more than one template registered, you need to add the template name as the `template` attribute. With the element, using the `language` attribute will add a `language-{value}` class to the `pre code` block. You can now use HTML attributes and events to make your element as simple or interactive as you like! 
   ```HTML
-  <code-input lang="HTML"></code-input>
+  <code-input language="HTML"></code-input>
   ```
   *or*
   ```HTML
-  <code-input lang="HTML" placeholder="Type code here" template="syntax-highlighted" onchange="console.log('Your code is', this.value)">&lt; href='https://github.com/WebCoder49/code-input'>code-input&lt;/a></code-input>
+  <code-input language="HTML" placeholder="Type code here" template="syntax-highlighted" onchange="console.log('Your code is', this.value)">&lt; href='https://github.com/WebCoder49/code-input'>code-input&lt;/a></code-input>
   ```
 
 ## Contributing

tests/prism.html

@@ -7,7 +7,7 @@
 
     <!--Import Prism-->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/themes/prism.min.css">
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/components/prism-core.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/prism.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/autoloader/prism-autoloader.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/line-numbers/prism-line-numbers.min.js"></script>
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/line-numbers/prism-line-numbers.min.css">