Markdown is one of the markup languages that is simple but enriched to use.
Use GitHub Pages, it is preferable to switch to kramdown.
You can go through the [markdown tutorial] (http://markdowntutorial.com/) to understand the simplicty of it.
In this website, kramdown is used since it is hosed on Git Pages. (Here is the sytax and quick reference)
Below, we will have two versions. But if you want to host it on GitHub Pages, kramdown is flavored.
markdown (Some of them will not rendered rightly here.)
kramdown
```
Here is the fenced code block
```
Here is the fenced code block
~~~
Here is the fenced code block for kramdown
~~~
Here is the fenced code block for kramdown
```python
def hello_word():
print(“Hello, world!”);
```
def hello_word():
print("Hello, world!");
~~~ python
def hello_word():
print("Hello, world!");
~~~
def hello_word():
print("Hello, world!");
{% highlight python %}
def hello_word():
print(“Hello, world!”);
{% endhighlight %}
def hello_word():
print("Hello, world!");![Image on Wiki] (https://upload.wikimedia.org/wikipedia/en/a/a9/Example.jpg)
![Image on Wiki] (https://upload.wikimedia.org/wikipedia/en/a/a9/Example.jpg)


No space between ] and (
[Google] (https://www.google.com)
[Google] (https://www.google.com)
[Google](https://www.google.com)
No space between ] and (
[Google][Google link]
[Google link]: https://www.google.com
[comment]: <> (This is one line of comment.)
Where the comment is This is one line of comment.
Icons is provided by FindIcons.com