fix doc

README.md

@@ -49,19 +49,25 @@ Automatically done in CI and available in <https://metexplore.pages.mia.inra.fr/
 Major version (X.y.z):
 
 ```bash
-npm run version major
+npm run update-version major
 ```
 
 Minor version (x.Y.z):
 
 ```bash
-npm run version minor
+npm run update-version minor
 ```
 
 Patch version (x.y.Z):
 
 ```bash
-npm run version patch
+npm run update-version patch
+```
+
+To a specific version:
+
+```bash
+npm run update-version 0.6.0
 ```
 
 The command "npm run version" changes both package.json and metexplore3-api.yml files.