docs: update S3 access instructions for clarity and consistency

Author: migrau

docs/Cluster_basics/s3.md

@@ -138,13 +138,14 @@ stu
 
 Read-Only Mode — You can browse and download files but cannot modify or upload from this interface.
 
-1. Go to https://ood.sc.irbbarcelona.org/pun/sys/dashboard/ and log in with your LDAP credentials.
+1. Go to [Open OnDemand Dashboard](https://ood.sc.irbbarcelona.org/pun/sys/dashboard/)
+and log in with your LDAP credentials.
 
-2. Click on "Home Directory System installed App".
+1. Click on "Home Directory System installed App".
 
 ![alt text](../assets/images/ooo-home-directory.png)
 
-3. Select the S3 storage on the left panel and navigate through the folders.
+1. Select the S3 storage on the left panel and navigate through the folders.
 You can read PDFs and text files directly in the browser.
 To view Excel or HTML files, you need to download them first.
 
@@ -158,20 +159,22 @@ Here are the instructions for ubuntu, but it is also possible using windows and
 the official IRB documentation.
 [IRB documentation.](https://irb.app.lumapps.com/home/ls/content/5695990366740739/archive-to-s3-minio)
 
-1. Create a conda enviroment with rclone.
-```
+1. Create a conda enviroment with rclone
+
+```bash
 conda create -n s3 rclone -c conda-forge -y
 conda activate s3
 ```
 
-2. Download and run the app from IT
-```
+1. Download and run the app from IT
+
+```bash
 wget https://github.com/its-irb/irb-storage-public-scripts/releases/latest/download/minio-rclone-copy-GUI-linux
 chmod minio-rclone-copy-GUI-linux
 ./minio-rclone-copy-GUI-linux
 ```
 
-3. Mount:
+1. Mount:
 
 Login using your LDAP credentials.