fix the readme, from pipelines flag to skip-pipelines flag

README-dockerhub.md

@@ -78,7 +78,7 @@ There are some env vars for overriding this data;
 | ---------------- | ------------------------------------------ | --------------------------------------------- |
 | `--debug`        | Get more detailed output as Trivy runs.    |                                               |
 | `--severities`   | The Severities that you are interested in. | `--severities CRITICAL,HIGH,UNKNOWN`          |
-| `--pipelines`    | Scan repository pipeline files.            | `--pipelines` / `PIPELINES=1 trivy ...`       |
+| `--skip-pipelines`    | Skip scan repository pipeline files.              | `--skip-pipelines`       |
 | `--sast`    | To enable SAST scanning.            | `--sast`        |
 | `--reachability`    | To enable reachability scanning.            | `--reachability`        |
 | `--package-json` | Scan package.json files without lock files | `--package-json` / `PACKAGE_JSON=1 trivy ...` |

README.md

@@ -89,8 +89,8 @@ Certain scanners have additional behaviors
 
 ### Pipelines
 
-The pipelines scanner is enabled by providing either `--pipelines` flag or `PIPELINES=1` environment variable.
-It uses [Pipeline Parser](https://github.com/argonsecurity/pipeline-parser) to parse the pipelines, and therefore, supports only the platforms that are supported by the package.
+The pipelines scanner is enabled, to skip fetch and scan pipelines add `--skip-pipelines` flag.
+pipelines scanning uses [Pipeline Parser](https://github.com/argonsecurity/pipeline-parser) to parse the pipelines, and therefore, supports only the platforms that are supported by the package.
 
 The results of the scanner are: