fixed some file

.gitignore

@@ -2,3 +2,4 @@ env
 node_modules
 docs
 yarn.lock
+package-lock.json

src/guide/basics/middleware.md

@@ -104,7 +104,7 @@ async def halt_response(request, response):
 ```
 :---
 
-## Order of execution
+#### Order of execution
 
 Request middleware is executed in the order declared. Response middleware is executed in **reverse order**.
 

src/guide/basics/routing.md

@@ -22,7 +22,7 @@ But what is it? And how do we use it?
 
 ---:1
 
-The most basic way to wire up a handler to an endpoing is with `app.add_route()`.
+The most basic way to wire up a handler to an endpoint is with `app.add_route()`.
 
 See [API docs]() for more details.
 :--:1