Minor fixes of the dark mode + automatic equation numbering (alshediv…

…at#160)

* Add an option for showing selected publications

* Improve publication styles

* Update README.md

* Clearfix

* Fix minor issues with dark mode

* Add automatic equation numbering (alshedivat#158)

* Fix a typo

_config.yml

@@ -71,8 +71,6 @@ og_image: favicon.svg # The site-wide (default for all links) Open Graph preview
 # Open Graph
 # -----------------------------------------------------------------------------
 # Display links to the page with a preview object on social media.
-# To achieve this, change serve_og_meta to true and then provide the URL of the
-# preview image as the value of og_image.
 serve_og_meta: false # Include Open Graph meta tags in the HTML head
 og_image: # The site-wide (default for all links) Open Graph preview image
 

_posts/2015-10-20-math.md

@@ -9,7 +9,17 @@ This theme supports rendering beautiful math in inline and display modes using [
 To use display mode, again surround your expression with `$$` and place it as a separate paragraph. Here is an example:
 
 $$
-\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)
+\sum_{k=1}^\infty |\langle x, e_k \rangle|^2 \leq \|x\|^2
 $$
 
+You can also use `\begin{equation}...\end{equation}` instead of `$$` for display mode math.
+MathJax will automatically number equations:
+
+\begin{equation}
+\label{eq:caushy-shwarz}
+\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)
+\end{equation}
+
+and by adding `\label{...}` inside the equation environment, we can now refer to the equation using `\eqref`.
+
 Note that MathJax 3 is [a major re-write of MathJax](https://docs.mathjax.org/en/latest/upgrading/whats-new-3.0.html){:target="\_blank"} that brought a significant improvement to the loading and rendering speed, which is now [on par with KaTeX](http://www.intmath.com/cg5/katex-mathjax-comparison.php){:target="\_blank"}.