Update introduction.md
remove 'normal'
@@ -5,5 +5,5 @@ Here we will describe how to:
* _delegate your stake to a stake pool_ so that you can participate to the consensus
and maybe collect rewards for that;
-If you are a _normal_ user of the blockchain then you will certainly not need to look
+If you are a user of the blockchain then you will certainly not need to look
at the last section about _how to register a stake pool_.
