Add additional pre-commit hooks (#245)

* Add and run end-of-file-fixer
* Add and run trailing-whitespace
* Add and run check-yaml
* Add and run check-json
* Add and run pretty-format-yaml
* Fix comment indentation

pyscriptjs/examples/todo.html

@@ -8,7 +8,7 @@
 
     <link rel="icon" type="image/png" href="favicon.png" />
     <link rel="stylesheet" href="/build/pyscript.css" />
-    
+
     <script defer src="/build/pyscript.js"></script>
     <py-env>
     - paths:
@@ -22,7 +22,7 @@
 
   <main class="max-w-xs mx-auto mt-4">
     <section>
-    
+
     <div class="text-center w-full mb-8">
       <h1 class="text-3xl font-bold text-gray-800 uppercase tracking-tight">To Do List</h1>
     </div>
@@ -32,20 +32,20 @@
         Add task
       </button>
     </div>
-  
+
     <py-list id="myList"></py-list>
     <div id="list-tasks-container" class="flex flex-col-reverse mt-4">
   </div>
-    
+
     <template id="task-template">
         <section class="task bg-white my-1">
             <label for="flex items-center p-2 ">
               <input class="mr-2" type="checkbox" class="task-check">
               <p class="m-0 inline"></p>
             </label>
-        </section>        
+        </section>
       </template>
-  
+
   </section>
   </main>
 </body>