Installation.md

@@ -2,6 +2,10 @@
 1. Install the HDF5 libraries:
     ```bash
     sudo apt-get install libhdf5-dev
+    ```
+    or, if you use a professional CentOS computer with no administrator right, load an HDF5 library compatible with gfortran:
+    ```bash
+    module load hdf5
     ```
 	If you intend to use *CAXS*, install the latest version of [OpenMPI](https://www.open-mpi.org/) as well
 (support of `mpif08` is mandatory).