Make home page sections dynamic and configurable (#14)

* Make home page sections dynamic and configurable

* Fix navbar issue when no section is configured + fix next-prev navigator

* Update exampleSite

* Fix next-prev navigator

* Make navbar brand URL context aware

exampleSite/data/sections/skills.yaml

@@ -0,0 +1,41 @@
+# section information
+section:
+  name: Skills
+  enable: true
+  weight: 2
+  showOnNavbar: true
+
+# Your Skills.
+# Give a summary of you each skill in the summary section.
+skills:
+- name: Kubernetes
+  icon: "images/skills/kubernetes.png"
+  summary: "Capable of deploying, managing application on Kubernetes. Experienced in writing Kubernetes controllers for CRDs."
+
+- name: Go Development
+  icon: "images/skills/go.png"
+  summary: "Using as the main language for professional development. Capable of writing scalable, testable, and maintainable program."
+
+- name: Cloud Computing
+  icon: "images/skills/cloud.png"
+  summary: "Worked with most of the major clouds such as GCP, AWS, Azure etc."
+
+- name: Docker
+  icon: "images/skills/docker.svg"
+  summary: "Write most of the programs as dockerized container. Experienced with multi-stage, multi-arch build process."
+
+- name: Prometheus
+  icon: "images/skills/prometheus.png"
+  summary: "Capable of setup, configure Prometheus metrics. Experienced with PromQL, AlertManager. Also, experienced with writing metric exporters."
+
+- name: Linux
+  icon: "images/skills/linux.png"
+  summary: "Using as the main operating system. Capable of writing bash/shell scripts."
+
+- name: Git
+  icon: "images/skills/git.png"
+  summary: "Experienced with git-based development. Mostly, use Github. Also, have experience in working with GitLab."
+
+- name: C++
+  icon: "images/skills/c++.png"
+  summary: "Know basic C/C++ programming. Used for contest programming and problem solving."