Update README.md

Author: alesanchezr

exercises/02-random-status/README.md

@@ -11,4 +11,5 @@ Create a condition to print on the console the following messages depending on t
 | 404       | The URL you asked is not found |
 | 503       | Unavailable right now |
 | 200       | Everything went perfect |
-| 400       | Something is wrong on the request params |
+| 400       | Something is wrong on the request params |
+| anything else | anything |

exercises/08-blog-post-author/README.md

@@ -5,6 +5,8 @@ Take a moment to understand the response body when doing a GET request to this e
 
 👉🏼 [Here is a brief video explanation.](https://www.youtube.com/watch?v=fwfBYVrvSk0)
 
+![json explanation](https://github.com/4GeeksAcademy/python-http-requests-api-tutorial-exercises/blob/master/assets/traversion_json.png?raw=true)
+
 # 📝 Instructions
 
 Get the author name of the first post.

exercises/09-array-of-blog-titles/README.md

@@ -7,7 +7,14 @@ Using the same endpoint from the previous exercise, create a function `get_title
 ## 💡Hint
 
 1. Create the function `get_titles`.
-2. Loop.
-3. Add each post title to the new array.
-4. Return the array
+2. Declare a new empty array called `titles`.
+2. Loop each post from the list of posts.
+3. Get the title of each post.
+3. Add that title to the new array.
+4. Return the titles array
 
+The console output should be something similar to this:
+
+```python
+['title 1','title 2', 'title 3']
+```

exercises/09-array-of-blog-titles/app.py

@@ -2,4 +2,7 @@
 
 def get_titles():
     # your code here
-    return None
+    return None
+
+
+print(get_titles())