Fix syntax highlight in some files

for thing in collection:

    do_something

~~~

{: .python}

{: .language-python}

The class specified at the bottom using an opening curly brace and colon,

the class identifier with a leading dot,

~~~

to delete the cell press <kbd>D</kbd>

~~~

{: .html}

The table below covers most of the keyboard key labels.

~~~

press <kbd>Ctrl</kbd>+<kbd>X</kbd> to quit nano.

~~~

{: .html}

{% include links.md %}

    ~~~

    $ git clone -b gh-pages https://github.com/timtomch/data-cleanup.git

    ~~~

    {: .bash}

    {: .language-bash}

    Note that the URL for your lesson will have your username and chosen repository name.

    ~~~

    $ cd data-cleanup

    ~~~

    {: .bash}

    {: .language-bash}

    Note that the name of your directory should be what you named your lesson 

    on the example this is `data-cleanup`.

    ~~~

    $ git remote add template https://github.com/swcarpentry/styles.git

    ~~~

    {: .bash}

    {: .language-bash}

    This will allow you to pull in changes made to the template,

    such as improvements to our CSS style files.

    ~~~

    $ git checkout gh-pages

    ~~~

    {: .bash}

    {: .language-bash}

	This will ensure that you are using the most "stable" version of the

	template repository. Since it's being actively maintained by the

    ~~~

    $ make serve

    ~~~

    {: .bash}

    {: .language-bash}

14. Commit your changes *and the HTML pages in the root directory of

    your lesson repository* and push to the `gh-pages` branch of your

    $ git commit -m "Explanatory message"

    $ git push origin gh-pages

    ~~~

    {: .bash}

    {: .language-bash}

15. [Tell us][contact] where your lesson is so that we can add it to

    the appropriate index page(s).