meta-oniro-blueprints/README.md: Refactor to include correct deps and misc

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

meta-oniro-blueprints/README.md

@@ -6,19 +6,27 @@
 
 ## Description
 
-This layer, `meta-oniro-blueprints`, contains build metadata for Oniro Project
+The `meta-oniro-blueprints` layer contains build metadata for Oniro Project
 blueprints.
 
 ## Layer dependencies
 
 The `meta-oniro-blueprints` layer depends on the following layers:
 
-* meta-oniro
-  * URI: https://git.ostc-eu.org/distro/oniro.git
+* openembedded-core
+  * URI: https://git.openembedded.org/openembedded-core
+* bitbake
+  * URI: https://git.openembedded.org/bitbake/
 * meta-homeassistant
   * URI: https://github.com/meta-homeassistant/meta-homeassistant.git
-* meta-zephyr
-  * URI: https://git.ostc-eu.org/OSTC/OHOS/meta-zephyr.git
+* meta-openembedded
+  * URI: https://git.openembedded.org/meta-openembedded/
+  * layers: meta-oe
+* meta-raspberrypi
+  * URI: https://git.yoctoproject.org/git/meta-raspberrypi
+* oniro
+  * URI: https://booting.oniroproject.org/distro/oniro.git
+  * layers: meta-oniro-core
 
 Note that the dependencies of the above layers should also be taken into
 consideration.
@@ -27,12 +35,16 @@ consideration.
 
 ## Merge requests
 
-All contributions are to be handled as merge requests in the [oniro Gitlab project](https://git.ostc-eu.org/distro/oniro).
+All contributions are to be handled as merge requests in the
+[oniro Gitlab repository](https://booting.oniroproject.org/distro/oniro). For
+more information on the contributing process, check the `CONRIBUTING.md` file.
 
 ## Maintainers
 
 * Andrei Gherzan <andrei.gherzan@huawei.com>
+* Eilís Ní Fhlannagáin <elizabeth.flanagan@huawei.com>
+* Stefan Schmidt <stefan.schmidt@huawei.com>
 
 # License
 
-The license of this layer is [Apache-2.0](https://git.ostc-eu.org/distro/oniro/-/blob/dunfell/LICENSES/Apache-2.0.txt).
+This layer is release under the licenses listed in the `LICENSES` root directory.