Part-2a.-Extending-my-first-service.md

@@ -38,16 +38,17 @@ You'll note a lot of new files have appeared, of note are:
 
 ## Before we start adding stuff, lets introduce some timestamps, everyone loves timestamps!
 
-FastAPI has a concept called _middleware_ - from te documentation:
+FastAPI has a concept called _middleware_ - from the documentation:
 
 _A "middleware" is a function that works with every **request** before it is processed by any specific path operation._\
 _And also with every **response** before returning it._
 
 Lets take advantage of that, to add timing data our request/response cycle, run `vim main.py`
 
-Enter insert-mode ( press `i` ), and insert the following code at line 12 ( below `app = FastAPI()` )
+Enter insert-mode ( press `i` ), and insert the following code at line 7 ( below `app = FastAPI()` )
+
+```plaintext
 
-```
 from time import time
 from fastapi import Request
 
@@ -59,4 +60,5 @@ async def add_process_time_header(request: Request, call_next):
 
     response.headers["X-Process-Time"] = str(process_time)
     return response
+
 ```
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