fix: format Least privilege

05_node_operations.asciidoc

@@ -533,7 +533,7 @@ To secure your operating system, here are some of the top items to consider:
 
 Provenance:: Start by ensuring that you are downloading the correct operating system image, and verify any signatures or checksums before installing it. Extend this to any software that you install. Double-check any source or URL from where you download. Verify the integrity and correctness of the downloaded software via signature and checksum verification.
 Maintenance:: Make sure that you keep your operating system up to date. Enable automated daily or weekly installation of security updates.
-Least privilege: set up users for specific processes and give them the least access needed to run a service. Do not run processes with admin privileges (e.g., +root+).
+Least privilege:: set up users for specific processes and give them the least access needed to run a service. Do not run processes with admin privileges (e.g., +root+).
 Process isolation:: Use the operating system features to isolate processes from each other.
 Filesystem permissions:: Configure the filesystem carefully, on the least-privilege principle. Do not make files readable or writable by everyone.
 Strong authentication:: Use strong randomly generated passwords or, whenever possible, public-key authentication. For example, it is safer to use Secure Shell (SSH) with a cryptographic key pair instead of a password.