fix reflecting equations in HSE reconstruction docs (#48)

Author: zingale

docs/hse-reconstruction.ipynb

@@ -162,9 +162,17 @@
     "\n",
     "We also explicitly enforce reflection on the interface states:\n",
     "\n",
-    "$${\\bf q}_{{\\tt lo}-1/2,L} = {\\bf q}_{{\\tt lo}-1/2,R}$$\n",
-    "\n",
-    "$${\\bf q}_{{\\tt hi}+1/2,R} = {\\bf q}_{{\\tt hi}+1/2,L}$$"
+    "\\begin{align*}\n",
+    "{\\rho}_{{\\tt lo}-1/2,L} &= {\\rho}_{{\\tt lo}-1/2,R} \\\\\n",
+    "{u}_{{\\tt lo}-1/2,L} &= -{u}_{{\\tt lo}-1/2,R} \\\\\n",
+    "{p}_{{\\tt lo}-1/2,L} &= {p}_{{\\tt lo}-1/2,R}\n",
+    "\\end{align*}\n",
+    "\n",
+    "\\begin{align*}\n",
+    "{\\rho}_{{\\tt hi}+1/2,R} &= {\\rho}_{{\\tt hi}+1/2,L} \\\\\n",
+    "{u}_{{\\tt hi}+1/2,R} &= {\\rho}_{{\\tt hi}+1/2,L} \\\\\n",
+    "{\\}_{{\\tt hi}+1/2,R} &= {\\rho}_{{\\tt hi}+1/2,L}\n",
+    "\\end{align*}"
    ]
   },
   {