diff --git a/README.md b/README.md
index a96fbae..319e284 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,40 @@
 PyBerdrola
 ==========
-
 PyBerdrola allows to get info and invoices about the electric consumption.
+
+This info is obtained from the iberdrola.es using the same APIs that iOS app is using.
+
+
+Installation
+------------
+```bash
+pip install pyberdrola
+```
+
+
+Using pyberdrola
+----------------
+**pyberdrola** requires two variables (`IBUSER` and `IBPASS`) to be able to log in.
+
+```bash
+ # the same that you're using to login in https://www.iberdrola.es/
+export IBUSER='your_username'
+export IBPASS='your_pass'
+```
+
+After that, you can use the CLI:
+
+```bash
+# Show a list of all your invoices (date, consumption and price)
+pyberdrola all
+
+# Show info about your last invoice
+pyberdrola last
+
+# Show the help menu
+pyberdrola --help
+```
+
+License
+-------
+Read the [LICENSE file](LICENSE).
diff --git a/pyberdrola/__init__.py b/pyberdrola/__init__.py
index a73339b..00ec2dc 100644
--- a/pyberdrola/__init__.py
+++ b/pyberdrola/__init__.py
@@ -1 +1 @@
-__version__ = "0.0.8"
+__version__ = "0.0.9"