replace wikimedia links with static images (avoid 403 error)

Author: jeffjennings

2_WavelengthCalibration.ipynb

@@ -372,7 +372,7 @@
    },
    "outputs": [],
    "source": [
-    "Image(\"https://upload.wikimedia.org/wikipedia/commons/2/29/Mercury_Spectra.jpg\")"
+    "Image(\"Mercury_spectrum.jpg\")"
    ]
   },
   {
@@ -381,7 +381,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "Image(\"https://upload.wikimedia.org/wikipedia/commons/9/99/Neon_spectra.jpg\")"
+    "Image(\"Neon_spectrum.jpg\")"
    ]
   },
   {
@@ -390,7 +390,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "Image(\"https://upload.wikimedia.org/wikipedia/commons/a/a6/Krypton_Spectrum.jpg\")"
+    "Image(\"Krypton_spectrum.jpg\")"
    ]
   },
   {
@@ -410,7 +410,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "Image(\"https://upload.wikimedia.org/wikipedia/commons/0/0d/HG-Spektrum_crop.jpg\")"
+    "Image(\"HG_spectrum.jpg\")"
    ]
   },
   {
@@ -1774,12 +1774,14 @@
   "celltoolbar": "Slideshow",
   "language_info": {
    "codemirror_mode": {
-    "name": "ipython"
+    "name": "ipython",
+    "version": 3
    },
    "file_extension": ".py",
    "mimetype": "text/x-python",
    "name": "python",
-   "nbconvert_exporter": "python"
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3"
   },
   "rise": {
    "transition": "none"