Fix wrong placement of - sign

Author: krasserm

bayesian_linear_regression.ipynb

@@ -103,7 +103,7 @@
     "\n",
     "$$\n",
     "\\log p(\\mathbf{w} \\lvert \\mathbf{t}, \\alpha, \\beta) = \n",
-    "\\-beta E_D(\\mathbf{w}) - \\alpha E_W(\\mathbf{w}) + \\mathrm{const.} \\tag{12}\n",
+    "-\\beta E_D(\\mathbf{w}) - \\alpha E_W(\\mathbf{w}) + \\mathrm{const.} \\tag{12}\n",
     "$$\n",
     "\n",
     "where $E_D(\\mathbf{w})$ is defined by $(6)$ and \n",