fixed typos and rephrased addition of storymap

Author: jyaistMap

guide/02-api-overview/release-notes.ipynb

@@ -6,16 +6,16 @@
    "source": [
     "# What's new in version 1.4.2\n",
     "#### New\n",
-    "* Added ability to work with [StoryMap Journals](https://storymaps.arcgis.com/en/app-list/map-journal/) \n",
+    "* Added a `storymap` submodule to the [`arcgis.apps`](https://esri.github.io/arcgis-python-api/apidoc/html/arcgis.apps.html) module to work with [ArcGIS StoryMaps](https://storymaps.arcgis.com/en/app-list/map-journal/) \n",
     "* Added support for [registering data](http://enterprise.arcgis.com/en/server/latest/publish-services/windows/overview-register-data-with-arcgis-server.htm) and adding [`big data files shares`](http://enterprise.arcgis.com/en/server/latest/get-started/windows/what-is-a-big-data-file-share.htm) from Cloud Stores\n",
     "* Added `bulk_update()` function to `ContentManager` to update properties on a collection of items\n",
-    "* New [Orthomapping](http://pro.arcgis.com/en/pro-app/help/data/imagery/introduction-to-ortho-mapping.htm) module\n",
+    "* Added a new [Orthomapping](http://pro.arcgis.com/en/pro-app/help/data/imagery/introduction-to-ortho-mapping.htm) module\n",
     "* Enhanced [`clone()`](https://esri.github.io/arcgis-python-api/apidoc/html/arcgis.gis.toc.html#arcgis.gis.ContentManager.clone_items) of [`feature layer views`](https://doc.arcgis.com/en/arcgis-online/manage-data/create-hosted-views.htm) to support varied rendering and template definitions\n",
     "* Improved `clone()` of Pro Maps and Survey123 Forms\n",
     "* Added support fro `clone()` of [Vector Tile Style Items](https://www.esri.com/arcgis-blog/products/developers/mapping/design-custom-basemaps-with-the-new-arcgis-vector-tile-style-editor/)\n",
     "* Improved performance when using `clone()` on `feature services`\n",
-    "* Added `default_aggregation_styles` environment settign to [`gis.env`](https://esri.github.io/arcgis-python-api/apidoc/html/arcgis.env.html)\n",
-    "* Improved handling of data fields with the [`Spatial DataFrame`](https://esri.github.io/arcgis-python-api/apidoc/html/arcgis.features.toc.html#spatialdataframe)\n",
+    "* Added `default_aggregation_styles` environment setting to [`gis.env`](https://esri.github.io/arcgis-python-api/apidoc/html/arcgis.env.html)\n",
+    "* Improved handling of date fields with the [`Spatial DataFrame`](https://esri.github.io/arcgis-python-api/apidoc/html/arcgis.features.toc.html#spatialdataframe)\n",
     "\n",
     "#### Fixes\n",
     "* Fixed BUG-000110440 corrected misspelled `suppress_email` parameter that caused `gis.admin.license.revoke()` to fail\n",