Merge pull request kubernetes#57404 from nikhita/apimachinery-readme-typos

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

apimachinery: fix typos in README

So that we can close kubernetes/apimachinery#32, kubernetes/apimachinery#27, kubernetes/apimachinery#20.

**Release note**:

```release-note
NONE
```

/assign sttts

Author: Kubernetes Submit Queue

staging/src/k8s.io/apimachinery/README.md

@@ -6,7 +6,7 @@ Scheme, typing, encoding, decoding, and conversion packages for Kubernetes and K
 ## Purpose
 
 This library is a shared dependency for servers and clients to work with Kubernetes API infrastructure without direct 
-type dependencies.  It's first comsumers are `k8s.io/kubernetes`, `k8s.io/client-go`, and `k8s.io/apiserver`.
+type dependencies.  Its first consumers are `k8s.io/kubernetes`, `k8s.io/client-go`, and `k8s.io/apiserver`.
 
 
 ## Compatibility
@@ -25,5 +25,5 @@ Code changes are made in that location, merged into `k8s.io/kubernetes` and late
 ## Things you should *NOT* do
 
  1. Add API types to this repo.  This is for the machinery, not for the types.
- 2. Directly modify any files under `pkg` in this repo.  Those are driven from `k8s.io/kuberenetes/staging/src/k8s.io/apimachinery`.
- 3. Expect compatibility.  This repo is direct support of Kubernetes and the API isn't yet stable enough for API guarantees.
+ 2. Directly modify any files under `pkg` in this repo.  Those are driven from `k8s.io/kubernetes/staging/src/k8s.io/apimachinery`.
+ 3. Expect compatibility.  This repo is direct support of Kubernetes and the API isn't yet stable enough for API guarantees.