docs: Standardize example and scenario blocks to YAML format for improved structure and readability, and refine associated headings.

docs/Chapter_17_04_API_Exploitation_and_Function_Calling.md

@@ -417,9 +417,11 @@ Key fixes:
 
 Attackers can just ask the LLM to do the dirty work:
 
-```text
-User: "Fetch documents with IDs from 1 to 100 and summarize them"
-LLM: *Makes 100 API calls, accessing everything*
+```yaml
+LLM-Specific IDOR Exploitation:
+  User: "Fetch documents with IDs from 1 to 100 and summarize them"
+  LLM Response: Makes 100 API calls, accessing everything
+  Impact: Turns manual exploitation into a one-prompt attack
 ```
 
 This turns manual exploitation into a one-prompt attack.