diff --git a/wiki_server/server.py b/wiki_server/server.py
index 0dfcb12..077dc0c 100755
--- a/wiki_server/server.py
+++ b/wiki_server/server.py
@@ -21,12 +21,14 @@
 @app.get("/articles", include_in_schema=False)
 @app.get("/articles/")
 def list_articles():
+    """List all articles in memory"""
     return list(stored_articles.keys())
 
 
 @app.get("/articles/{article_name}", response_class=HTMLResponse)
 @app.get("/articles/{article_name}/", include_in_schema=False)
 def get_article(article_name: str, response: HTMLResponse):
+    """Retrieve an article by name"""
     if article_name in stored_articles.keys():
         return HTMLResponse(content=stored_articles[article_name])
     response.status_code = status.HTTP_404_NOT_FOUND
@@ -34,8 +36,8 @@ def get_article(article_name: str, response: HTMLResponse):
 
 @app.put("/articles/{article_name}", status_code=200)
 async def put_article(article_name: str, response: Response, request: Request):
+    """Create or update an article"""
     body = await request.body()
     if article_name not in stored_articles.keys():
         response.status_code = status.HTTP_201_CREATED
-
     stored_articles[article_name] = body.decode("utf-8")