README: Populate initial readme text

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

README

+meta-python-dunfellplus
+================================
+
+Introduction
+-------------------------
+
+This layer is intended to be an extension to the meta-python dunfell branch.
+This is because dunfell is an LTS version and more projects, with various
+python modules requirements will levitate more on this version. This layer will
+provide additional modules, additional versions or various other functionality
+backported from meta-python master.
+
+The aim of this is to minimise duplication on python recipes backporting on
+other layers. For example, meta-homeassistant.
+
+Dependencies
+-------------------------
+
+The meta-python-dunfellplus layer depends on:
+
+	URI: git://git.openembedded.org/openembedded-core
+	layers: meta
+	branch: dunfell
+	revision: HEAD
+
+	URI: git://git.openembedded.org/meta-openembedded
+	layers: meta-oe
+	branch: dunfell
+	revision: HEAD
+	
+	URI: git://git.openembedded.org/meta-openembedded
+	layers: meta-python
+	branch: dunfell
+	revision: HEAD
+
+Please follow the recommended setup procedures of your OE distribution.
+
+Contributing
+-------------------------
+
+Contributions to this layer are to be handled as merge requests in the Gitlab
+instance where the layer is hosted:
+https://git.ostc-eu.org/OSTC/OHOS/meta-python-dunfellplus.
+
+Maintenance
+-------------------------
+
+Maintainers: Andrei Gherzan <andrei.gherzan@huawei.com>