diff --git a/README.md b/README.md
index 6ebd63a..bf23df1 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
+# Calculate WordPress usage worldwide
+
+The following script will analyze the list of the first million domains with the most visits to give you the percentage of use.
+
+Warning that it can take a long time: between 20 to 30 days.
+
 ## Requirements
 
 To run it you'll need either 2Gb of RAM or a swap file of the same size.
@@ -19,3 +25,17 @@ make prepare
 ``` sh
 make run
 ```
+
+When all the CSV sites are analyzed, you can see the final figure by running the following script
+
+## Calculate percentage
+
+``` sh
+bash calculate-percentage.sh
+```
+
+## Historical
+
+### 2019
+
+19%