Up docs

README.rst

@@ -83,6 +83,17 @@ Or latest development version from GitHub:
 
     pip install https://github.com/barseghyanartur/graphene-elastic/archive/master.zip
 
+.. note::
+
+    Staring from version 0.8, the ``elasticsearch`` and ``elasticsearch-dsl``
+    packages are no longer installed by default. You must either install them
+    explicitly in your requirements or install as optional dependencies as
+    follows: ```pip install graphene-elastic[elasticsearch]```.
+    Alternatively, you can use ``opensearch-py`` and ``opensearch-dsl``.
+    You would then need to install the ``opensearch-py`` and ``opensearch-dsl``
+    packages explicitly in your requirements or install them as optional
+    dependencies as follows: ```pip install graphene-elastic[opensearch]```.
+
 Examples
 ========
 .. note::