README.md: Update

README.md

@@ -10,3 +10,25 @@ with the tools used by Macaroni to convert Portage metadata to *anise* specs.
 
 This repository wants to manage the binary of the core software used in the MARK stack
 and speed up installation for CD/CI pipeline.
+
+## Bump new packages
+
+In order to update the selected packages we use the `anise-portage-converter`
+tool. You need to have the *reposcan* JSON files aligned to the seed/mark-kits copy on `kit-cache` directory.
+
+The *reposcan* JSON files could be generated manually with this command:
+
+```bash
+$> mark-devkit kit clone --concurrency 30 --generate-reposcan-files --kit-cache-dir ./kit-cache --specfile packages/seeds/mark-kits/kits-versions/kits.yaml
+```
+
+or using the package `reposcan/meta-mark-xl` of the `mark-repo`. Obviously, in this case,
+the package must be bumped to updates kits to last available commit.
+
+When the `kit-cache` directory is ready to update *anise* specs runs:
+
+```bash
+$> anise-portage-converter generate --rules portage-converter/tools.yaml  --ignore-missing-deps \
+   --to . --enable-stage4 --ignore-wrong-packages
+```
+