diff --git a/02_production.ipynb b/02_production.ipynb
index e6e39bd..b6fd05a 100644
--- a/02_production.ipynb
+++ b/02_production.ipynb
@@ -284,6 +284,14 @@
     "To download images with Bing Image Search, you should sign up at Microsoft for *Bing Image Search*. You will be given a key, which you can either paste here, replacing \"XXX\":"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#clean\n",
+    "To download images with Bing Image Search, you should sign up at Microsoft for *Bing Image Search*. You will be given a key, which you can either paste here, replacing \"XXX\":"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -1958,6 +1966,18 @@
    "display_name": "Python 3",
    "language": "python",
    "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.4"
   }
  },
  "nbformat": 4,
diff --git a/clean/02_production.ipynb b/clean/02_production.ipynb
index 203f14b..245a770 100644
--- a/clean/02_production.ipynb
+++ b/clean/02_production.ipynb
@@ -88,6 +88,13 @@
     "## Gathering data"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "To download images with Bing Image Search, you should sign up at Microsoft for *Bing Image Search*. You will be given a key, which you can either paste here, replacing \"XXX\":"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -1075,6 +1082,18 @@
    "display_name": "Python 3",
    "language": "python",
    "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.4"
   }
  },
  "nbformat": 4,