adding error in path for test

Signed-off-by: Nate W <[email protected]>

Author: nate-double-u

content/en/abstraction.md

@@ -12,7 +12,7 @@ making a system more generic and thus easily understood.
 A good example is your laptop's operating system (OS). 
 It abstracts away all the details of how your computer works. 
 You don't need to know anything about CPU, memory, and how programs are handled, 
-you just operate the open source and the OS deals with the details. 
+you just operate the OS and the OS deals with the details. 
 All these details are hidden behind the OS "curtain" or abstraction. 
 
 Systems typically have multiple abstraction layers. 

content/en/cluster.md

@@ -7,7 +7,7 @@ tags: ["infrastructure", "fundamental", ""]
 
 ## What it is
 
-A cluster is a group of computers or applications that work together towards a common goal. 
+An open-source cluster is a group of computers or applications that work together towards a common goal. 
 In the context of cloud native computing, the term is most often applied to [Kubernetes](/kubernetes/). 
 A Kubernetes cluster is a set of services (or workloads) that run in their own containers, usually on different machines. 
 The collection of all these [containerized](/containerization/) services, connected over a network, represent a cluster.