Update README.md

README.md

@@ -38,7 +38,7 @@ This script should now provide comprehensive DNS security analysis, including op
 
 ## Usage
 Run the script from the command line by specifying the input file containing domain names and other optional parameters:
-```python3 dns_security_analysis_tool.py domains.txt --format csv --output dns_security_report```
+```python3 dns_security_analysis_tool.py domains.txt --format html --output dns_security_report```
 
 ### Command-Line Arguments
 - `domains-file`: Path to the file containing the list of domains for analysis.