fix: updating README.rst

README.rst

@@ -234,6 +234,22 @@ This data collection is behind a consent flag, so please help devstack's maintai
 
    make metrics-opt-in
 
+For Pearson we also need to configure some hosts in our local hosts file. To make this you would have to open the file `/etc/hosts`, then open the file with your favorite editor and add the following values:
+
+.. code:: sh
+
+    127.0.0.1       lms.pearson.localhost
+    127.0.0.1       lms.main.localhost
+
+    127.0.0.1       edx.devstack.ecommerce
+    127.0.0.1       ecommerce.pearson.localhost
+    127.0.0.1       ecommerce.main.localhost
+
+    127.0.0.1       edx.devstack.discovery
+    127.0.0.1       discovery.pearson.localhost
+    127.0.0.1       discovery.main.localhost
+
+
 Now that you're up and running, read about the `most common development workflow`_.
 
 Usernames and Passwords
@@ -274,6 +290,21 @@ is ``edx``.
 Service List
 ------------
 
+Pearson modifications
+~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+    For optimization reasons, we decided to disable some services that we are not going to use. These are:
+
+    * insights
+    * coursegraph
+    * analyticsapi
+    * notes
+    * opensearch12
+
+    If you want to reactivate these services you can uncomment the definitions on docker-compose.yml, provision.sh, repo.sh, etc
+
 These are the edX services that Devstack can provision, pull, run, attach to, etc.
 Each service is accessible at ``localhost`` on a specific port.
 The table below provides links to the homepage, API root, or API docs of each service,
@@ -373,7 +404,7 @@ because services are in the process of being upgraded to Elasticsearch 7, but no
 support Elasticsearch 7 yet. As we complete these migrations, we will update the dependencies
 of these containers.
 
-
+Be sure that you are installing devstack using an environment in Python 3.8.
 
 Advanced Configuration Options
 ------------------------------