diff --git a/notebooks/topic_modelling/Topic_modelling.ipynb b/notebooks/topic_modelling/Topic_modelling.ipynb
index 234fed4..07b993e 100644
--- a/notebooks/topic_modelling/Topic_modelling.ipynb
+++ b/notebooks/topic_modelling/Topic_modelling.ipynb
@@ -223,34 +223,13 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "NMF (Non-negative matrix factorization) или неотрицательное матричное разложение - это представление матрицы в виде произведения двух матриц, значения в которых больше или равны 0. "
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 14,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<img src=\"https://www.researchgate.net/publication/312157184/figure/fig1/AS:448453387001860@1483931027472/Conceptual-illustration-of-non-negative-matrix-factorization-NMF-decomposition-of-a.png\" width=\"1000\" height=\"900\"/>"
-      ],
-      "text/plain": [
-       "<IPython.core.display.Image object>"
-      ]
-     },
-     "execution_count": 14,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "Image(url=\"https://www.researchgate.net/publication/312157184/figure/fig1/AS:448453387001860@1483931027472/Conceptual-illustration-of-non-negative-matrix-factorization-NMF-decomposition-of-a.png\",\n",
-    "     width=1000, height=900)"
+    "NMF (Non-negative matrix factorization) или неотрицательное матричное разложение - это представление матрицы в виде произведения двух матриц, значения в которых больше или равны 0. \n",
+    "\n",
+    "![](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs10898-022-01167-7/MediaObjects/10898_2022_1167_Fig1_HTML.png)"
    ]
   },
   {
@@ -83641,7 +83620,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.14"
+   "version": "3.8.14"
   }
  },
  "nbformat": 4,