Spack again

docs/howto/local_install.rst

-Spack installation
+Local installation
 ==================
 
+The supported local installation is done with Spack
+
 Spack is a package management tool designed to support multiple versions 
 and configurations of software on a wide variety of platforms and environments. 
 It was designed for large supercomputing centers but can also be used by a regular users.
@@ -23,8 +25,8 @@ several of issues we submitted are not yet on any tag.
 .. code:: bash
 
     git clone https://github.com/spack/spack.git
-    . spack/share/spack/setup-env.sh
-    git clone https://github.com/eic/eic-spack.git   # Add this to your e.g. ~/.bashrc
+    . spack/share/spack/setup-env.sh                 # Add this to your e.g. ~/.bashrc
+    git clone https://github.com/eic/eic-spack.git
     spack repo add eic-spack
     
 
@@ -69,10 +71,11 @@ Create environment file **athena.yaml** with the next content:
         #    root: /opt/software
         #view: /opt/local
 
+
 Create the environement from the file
 
 
-.. code::bash
+.. code:: bash
 
     spack env create athena athena.yaml
     spack env activate athena