Install.md

@@ -13,6 +13,7 @@ In order to install (once that you have a gitlab account, valid permission to cl
 ```bash
 git clone git@ppmcore.mpi-cbg.de:incardon/openfpm_pdata.git
 ./install
+make install
 ```
 
 and follow the instructions
@@ -43,7 +44,11 @@ The good news is that there is a installation script that should take care of th
 ./install
 ```
 
-At the end of the process you should have dependencies and test case compiled
+At the end of the process you should have dependencies and test case compiled, a full set of options is available with
+
+```bash
+./install -h
+```
 
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