Revert

Adam Symington · Adam Symington · commit 4abfe1a3bd5c · 2020-04-13T15:40:56.000+01:00
diff --git a/content/data_work/optimisation.ipynb b/content/data_work/optimisation.ipynb
@@ -711,7 +711,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.4"
+   "version": "3.7.3"
   }
  },
  "nbformat": 4,
diff --git a/content/data_work/simple_plots.ipynb b/content/data_work/simple_plots.ipynb
@@ -377,7 +377,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.4"
+   "version": "3.7.3"
   }
  },
  "nbformat": 4,
