Improve theme README & exampleSite (#157)

* Improve theme README

* Update exampleSite

* Add "Available Translation" section in README

exampleSite/data/en/sections/skills.yaml

@@ -12,38 +12,38 @@ section:
 # Give a summary of you each skill in the summary section.
 skills:
 - name: Kubernetes
-  icon: "images/skills/kubernetes.png"
+  icon: "/images/sections/skills/kubernetes.png"
   summary: "Capable of deploying, managing application on Kubernetes. Experienced in writing Kubernetes controllers for CRDs."
   url: "https://kubernetes.io/"
 
 - name: Go Development
-  icon: "images/skills/go.png"
+  icon: "/images/sections/skills/go.png"
   summary: "Using as the main language for professional development. Capable of writing scalable, testable, and maintainable program."
   url: "https://golang.org/"
 
 - name: Cloud Computing
-  icon: "images/skills/cloud.png"
+  icon: "/images/sections/skills/cloud.png"
   summary: "Worked with most of the major clouds such as GCP, AWS, Azure etc."
 
 - name: Docker
-  icon: "images/skills/docker.svg"
+  icon: "/images/sections/skills/docker.svg"
   summary: "Write most of the programs as dockerized container. Experienced with multi-stage, multi-arch build process."
   url: "https://www.docker.com/"
 
 - name: Prometheus
-  icon: "images/skills/prometheus.png"
+  icon: "/images/sections/skills/prometheus.png"
   summary: "Capable of setup, configure Prometheus metrics. Experienced with PromQL, AlertManager. Also, experienced with writing metric exporters."
   url: "https://prometheus.io/"
 
 - name: Linux
-  icon: "images/skills/linux.png"
+  icon: "/images/sections/skills/linux.png"
   summary: "Using as the main operating system. Capable of writing bash/shell scripts."
 
 - name: Git
-  icon: "images/skills/git.png"
+  icon: "/images/sections/skills/git.png"
   summary: "Experienced with git-based development. Mostly, use Github. Also, have experience in working with GitLab."
   url: "https://git-scm.com/"
 
 - name: C++
-  icon: "images/skills/c++.png"
+  icon: "/images/sections/skills/c++.png"
   summary: "Know basic C/C++ programming. Used for contest programming and problem solving."