Update.md

@@ -27,13 +27,13 @@ During installation you also did the following
 
 ## Update
 
-In order to update, go into openfpm_pdata project source file and do
+In order to update, go into the openfpm_pdata source folder and update the source with
 
 ```bash
 git pull origin master
 ```
 
-update the installation with
+recompile the updated sources with
 
 ```bash
 ./install -i "where you put the dependencies" -c "--prefix=where you install OpenFPM previously"