containers.md

@@ -10,33 +10,41 @@ Singularity documentation is available at <http://singularity.lbl.gov/> and shou
 
 To work with singularity, you have to download/create a singularity image (containing every software you need).
 To create a new image, see the [official documentation](http://singularity.lbl.gov/create-image).
-You can download existing singularity images on [singularity hub](https://singularity-hub.org/)
+You can download existing singularity images on [singularity hub](https://singularity-hub.org/).
 
 #### Usage example:
 
-Let's work the [hello world official image](https://singularity-hub.org/collections/83/
+Let's work the [hello world official image](https://singularity-hub.org/collections/83/)
+
 ```sh
 singularity pull shub://vsoch/singularity-hello-world
 ```
+
 Now you have the `vsoch-singularity-hello-world-master.img` in the current directory.
 To execute hello world,
+
 ```sh
 singularity run vsoch-singularity-hello-world-master.img
 ```
+
 Now, if you want to go inside the container in a shell environment, just type
+
 ```sh
 singularity shell vsoch-singularity-hello-world-master.img
 ```
+
 and now you are inside the image isolated from the host system! By default, the home directory is mounted inside the image.
 To edit an image, add the option `-w`
+
 ```sh
 singularity shell -w vsoch-singularity-hello-world-master.img
 ```
-Note that you always have the same privilege in the image than on the host (you can't edit directory you do not have rights!).
+
+Note that you always have the same privilege in the image than on the host (you can't edit directory you do not have permissions!).
 
 If you want to modify the image anyway, you have to download the image on a machine where you are the administrator and edit the image as root.
 
 
 #### Feel++ users
 
-CI generated images are available on [IRMA gitlab](https://gitlab.math.unistra.fr/feelpp/feelpp-singularity-images)
+CI generated images are available on [IRMA gitlab](https://gitlab.math.unistra.fr/feelpp/feelpp-singularity-images).