Update hyperlink in tutorial_similarity_based.ipynb

The hyperlinks related to their respective URLs on the package documentation page have been updated.

notebooks/tutorial_similarity_based.ipynb

@@ -258,7 +258,7 @@
    "source": [
     "### NSimilarity based methods\n",
     "\n",
-    "Check Documentation: <span style=\"color:red;\">**Missing Documentation**</span>"
+    "Check Documentation: **[NSimilarity](https://selector.qcdevs.org/api_methods_similarity.html#selector.methods.similarity.NSimilarity)**\n"
    ]
   },
   {
@@ -326,7 +326,7 @@
    "source": [
     "### Compute diversity of selected points\n",
     "\n",
-    "The similarity of a set of points can be computed using the `SimilarityIndex` class and an appropriate similarity index (Check Documentation: <span style=\"color:red;\">**Missing Documentation**</span>). The diversity of the set can then be computed as `1 - similarity_index`."
+    "The similarity of a set of points can be computed using the `SimilarityIndex` class and an appropriate similarity index (Check Documentation: **[SimilarityIndex](https://selector.qcdevs.org/api_methods_similarity.html#selector.methods.similarity.SimilarityIndex)**). The diversity of the set can then be computed as `1 - similarity_index`."
    ]
   },
   {