add PlatformVersion

Author: mmetc

crowdsec-docs/docs/log_processor/service-discovery-setup/expr.md

@@ -46,7 +46,13 @@ Various helpers are available for use in the `detect.yaml` file to determine how
 
     Returns the family of the OS (`debian`, `rhel`, ...)
 
-> `Host.Platform == "debian"`
+> `Host.PlatformFamily == "debian"`
+
+### `Host.PlatformVersion`
+
+    Returns the version of the OS or distribution (for linux, /etc/os-release)
+
+> `Host.PlatformVersion == "25.04"
 
 ### `Host.KernelVersion`
 
@@ -98,13 +104,13 @@ This object exposes helpers functions for the filesystem
 
 ### `ProcessRunning(name) bool`
 
-    Returns `true` if there's any with the specified name running
+    Returns `true` if there's any process with the specified name running
 
 > `System.ProcessRunning("nginx") == true`
 
 ## Systemd
 
-    This object exposes helpers to get informations about systemd units.
+    This object exposes helpers to get informations about Systemd units.
 
     Only available on Linux.
 
@@ -148,4 +154,4 @@ This object exposes helpers functions for the filesystem
 
 &nbsp;&nbsp;&nbsp;&nbsp;Constraint supports operators like `=`, `!=`, `<`, `<=`, `>`, `>=`, ranges (1.1.1 - 1.3.4), AND with commas (`>1`, `<3`), and ~ compatible ranges.
 
-> `Version.Check(Host.KernelVersion, ">=6.24.0")`
+> `Version.Check(Host.KernelVersion, ">=6.24.0")`