adding alt to images

Signed-off-by: Namanv0509 <namanverma00260@gmail.com>

Author: Namanv0509

content/en/learning-paths/intro-kubernetes-course/simple example/_index.md

@@ -11,12 +11,10 @@ cardImage: ""
 
 {{< chapterstyle >}}
 
-<p align="center">simple `hello-world` conatiner </p>
+{{< image src="/images/learning-path/intro-kubernetes/simple-example/c7_l1_1.png" width="100%" align="center" alt="simple `hello-world` conatiner" >}}
 
-{{< image src="/images/learning-path/intro-kubernetes/simple-example/c7_l1_1.png" width="100%" align="center"  >}}
 
-<p align="center">simple ubuntu container</p>
-{{< image src="/images/learning-path/intro-kubernetes/simple-example/c7_l1_2.png" width="100%" align="center"  >}}
+{{< image src="/images/learning-path/intro-kubernetes/simple-example/c7_l1_2.png" width="100%" align="center" alt="simple ubuntu container" >}}
 
 Watch these two examples below in the videos.