Update badge + space in convergence

Author: jorgensd

README.md

@@ -1,5 +1,5 @@
 # The dolfin-X tutorial
-![CI status](https://github.com/jorgensd/dolfinx-tutorial/actions/workflows/blank.yml/badge.svg)
+![CI status](https://github.com/jorgensd/dolfinx-tutorial/actions/workflows/build-publish.yml/badge.svg)
 ![Main status](https://github.com/jorgensd/dolfinx-tutorial/actions/workflows/main-test.yml/badge.svg)
 
 This is the github repo for the dolfinx-tutorial [webpage](https://jorgensd.github.io/dolfinx-tutorial/).

chapter4/convergence.ipynb

@@ -228,7 +228,7 @@
     "        hs[i] = 1. / Ns[i]\n",
     "        print(f\"h: {hs[i]:.2e} Error: {Es[i]:.2e}\")\n",
     "    rates = np.log(Es[1:] / Es[:-1]) / np.log(hs[1:] / hs[:-1])\n",
-    "    print(f\"Polynomial degree{degree:d}, Rates {rates}\")"
+    "    print(f\"Polynomial degree {degree:d}, Rates {rates}\")"
    ]
   },
   {
@@ -272,4 +272,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 2
-}
+}