fix Mathjax equation numbering

(See readthedocs/sphinx_rtd_theme#383 and ds4dm/ecole#76)

Author: dmey

docs/_static/style.css

@@ -24,4 +24,52 @@ table.colwidths-given {
 table.docutils td {
     white-space: unset;
     word-wrap: break-word;
+}
+
+/* CSS to fix Mathjax equation numbers displaying above.
+ *
+ * Credit to @hagenw https://github.com/readthedocs/sphinx_rtd_theme/pull/383
+ */
+div.math {
+	position: relative;
+	padding-right: 2.5em;
+}
+.eqno {
+	height: 100%;
+	position: absolute;
+	right: 0;
+	padding-left: 5px;
+	padding-bottom: 5px;
+	/* Fix for mouse over in Firefox */
+	padding-right: 1px;
+}
+.eqno:before {
+	/* Force vertical alignment of number */
+	display: inline-block;
+	height: 100%;
+	vertical-align: middle;
+	content: "";
+}
+.eqno .headerlink {
+	display: none;
+	visibility: hidden;
+	font-size: 14px;
+}
+.eqno:hover .headerlink {
+	display: inline-block;
+	visibility: hidden;
+}
+.eqno .headerlink:after {
+	display: inline-block;
+	visibility: visible;
+	content: "\f0c1";
+	font-family: FontAwesome;
+	margin-left: -.6em;
+}
+
+/* Make responsive */
+.MathJax_Display {
+	max-width: 100%;
+	overflow-x: auto;
+	overflow-y: hidden;
 }

docs/review.md

@@ -2,7 +2,7 @@
 
 TODO: some background statistical information/review of PDF/CDF and other terms used in `copula.md` and `fpca.md`?
 
-Note: I render files with the [MyST parser](https://myst-parser.readthedocs.io/en/latest/examples/wealth_dynamics_md.html) as it makes it easier to use standard LaTeX syntax. E.g. (from [their example](https://myst-parser.readthedocs.io/en/latest/examples/wealth_dynamics_md.html) -- note that [labels are not aligned correctly in the readthedocs theme](https://github.com/readthedocs/sphinx_rtd_theme/pull/383) but we can fix this later/use another theme in the case all eqs needs to be labelled):
+Note: I render files with the [MyST parser](https://myst-parser.readthedocs.io/en/latest/examples/wealth_dynamics_md.html) as it makes it easier to use standard LaTeX syntax.
 
 
 ## Example: Citations/Reference
@@ -21,6 +21,8 @@ dynamics.
 
 The model we will study is
 
+**NOTE**: eq without label
+
 $$
 w_{t+1} = (1 + r_{t+1}) s(w_t) + y_{t+1}
 $$
@@ -49,6 +51,7 @@ $\mathbb R^3$.
 
 (md:sav_ah)=
 
+**NOTE**: eq with label
 ```{math}
 ---
 label: md:sav_ah