docs: SCREENSHOTS_DIR in docker

README.md

@@ -74,7 +74,8 @@ nuclei --headless -u ACS_URL_HERE -V "SP_ENTITY_ID=ENTITY_ID_HERE" -V "BEARER_TO
 or using docker:
 
 ```sh
-docker run --rm -v ./:/app/ projectdiscovery/nuclei --headless -u ACS_URL_HERE -V "SP_ENTITY_ID=ENTITY_ID_HERE" -V "BEARER_TOKEN=BEARER_TOKEN_HERE" \
+docker run --rm -v ./:/app/ projectdiscovery/nuclei --headless -u ACS_URL_HERE -V "SP_ENTITY_ID=ENTITY_ID_HERE" \
+    -V "BEARER_TOKEN=BEARER_TOKEN_HERE" -V "SCREENSHOTS_DIR=/app/" \
     -duc -ms -t /app/nuclei-templates/ -nmhe -lna -dka 30 -dt 30 -tags headless
 ```