Add process posture check (#185)

* Add process check

* update images

src/pages/how-to/manage-posture-checks.mdx

@@ -17,7 +17,7 @@ While we plan to expand the range of posture checks, these are the checks curren
 - Country & Region Check
 - Operating System Check
 - Peer Network Range Check
-
+- Process Check
 
 <p>
     <img src="/docs-static/img/how-to-guides/supported-posture-checks-list.png" alt="high-level-dia" className="imagewrapper"/>
@@ -64,6 +64,8 @@ Below are some examples of OS versions for each operating system:
 
 The peer network range check verifies if a device is in certain IP ranges before it can connect. This check is useful when wanting to control access based on the network location of a peer. For example, disabling a connection to a routing peer when the peer is connecting from the office network range.
 
+### Process check
+The process check verifies whether a specific process is running on the connecting device. This check is useful when you want to control access based on the presence of a specific process on the connecting device. It's applicable to Linux, macOS, and Windows devices.
 
 ## Managing posture checks