Update Readme.md

Sample Prompts/Vulnerabilities/Readme.md

@@ -3,7 +3,7 @@
 ```
 Summarize the latest Vulnerabilities from the last week.
 ``` 
-Summarize <_`<CVE-XXXX>`_ vulnerability.
+Summarize <<CVE-XXXX> vulnerability.
 ```
 What vulnerabilities have been exploited recently by threat actors?
 ```