fix(k8s-the-hard-way): modify typo and wording (#3)

* Update 0003-kubernetes-the-hard-way.md

Typo (of sorts)

* Update 0003-kubernetes-the-hard-way.md

docs/posts/0003-kubernetes-the-hard-way.md

@@ -549,7 +549,7 @@ You will notice the following points in this systemd setup:
 
 1. The external host address is of the Load Balancer.
 1. The certificate files for both Kubernetes API server and the Etcd server are
-   being pass from the location previously generated.
+   being passed from the location previously generated.
 1. The encryption config is being fetched from a file generated in step 4.
 
 !!! question "What makes this setup HA then?"
@@ -641,13 +641,13 @@ kubectl get nodes
 ## How to run it?
 
 If you clone the repository, you would only need `vagrant up` to build everything
-from scratch. It takes you sometime to all the components up and ready, but it
-will set things up without any further intervention.
+from scratch. It will take some time for all the components to be up and ready, but it
+will set things up without any further manual intervention.
 
 ## Conclusion
 
 This task took me a lot of time to get right. I had to go through a lot of
-iteration to make it work. One of the most time-consuming parts was how the
+iterations to make it work. One of the most time-consuming parts was how the
 `etcd` cluster was misbehaving, leading to the Kubernetes API server hitting
 timeout errors and being inaccessible for the rest of the cluster's components.