added equation numbering to the mathjax config

docs/_includes/mathjax.html

@@ -6,4 +6,17 @@
 <!-- Copied from https://docs.mathjax.org/en/latest/web/components/combined.html -->
 <script type="text/javascript" id="MathJax-script" defer
   src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js">
+</script>
+
+<script type="text/x-mathjax-config">
+  MathJax.Hub.Config({
+    TeX: {
+      equationNumbers: {
+        autoNumber: "AMS"
+      }
+    }
+  });
+</script>
+<script type="text/javascript"
+        src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
 </script>

docs/pages/FiberCpp/half_sarcomeres/KX=F/KX=F.md

@@ -49,6 +49,7 @@ As explained at [lattice equations](../lattice_equations/lattice_equations.html)
 ### Approach
 
 The goal is to solve $$X$$ where $$K$$ and $$F$$ are known and 
+
 $$
 \begin{equation}
 K X = F
@@ -67,6 +68,7 @@ K_0 X + G(X) = F
 $$
 
 Further define
+
 $$
 \begin{equation}
 X_i = X_{g,i} + \Delta X_i
@@ -87,6 +89,7 @@ K_0 (X_{g,i} + \Delta X_i) + G(X_{g,i} + \Delta X_i) = F
 \end{equation}$$
 
 This can be re-arranged to yield
+
 $$
 \begin{equation}
 \Delta X_i  = K_0 ^{-1} (F - K_0 X_{g,i} - G(X_{g,i} + \Delta X_i))