fixing typos

notebooks/computing_time_series.ipynb

@@ -106,7 +106,7 @@
    "source": [
     "### 2. Overview of bin statistics and standard error estimation. \n",
     "\n",
-    "From the re-gridding process and the creation of `sst_at_buoy` we already estimated bin statistics. These are statistics of the cci-sst values interpolated to the buoy coordinates and gropped within a 1x1 degree bin:\n",
+    "From the re-gridding process and the creation of `sst_at_buoy` we already estimated bin statistics. These are statistics of the cci-sst values interpolated to the buoy coordinates and grouped within a 1x1 degree bin:\n",
     "\n",
     "- std \n",
     "- median \n",