Update composite_mask_export.ipynb

Author: Gabefire

examples/exports/composite_mask_export.ipynb

@@ -35,7 +35,7 @@
         "\n",
         "Composite masks are a combination of mask instances grouped in a single mask URL. \n",
         "\n",
-        "The purpose of this demo is to demonstrate how to transition from exporting single masks to exporting composite masks. "
+        "This demo aims to demonstrate how to transition from exporting single masks to exporting composite masks. "
       ],
       "cell_type": "markdown"
     },
@@ -64,7 +64,7 @@
       "metadata": {},
       "source": [
         "## API key and client\n",
-        "Provide a valid API key below in order to properly connect to the Labelbox client. Please review [Create API key guide](https://docs.labelbox.com/reference/create-api-key) for more information."
+        "Provide a valid API key below to properly connect to the Labelbox client. Please review [Create API key guide](https://docs.labelbox.com/reference/create-api-key) for more information."
       ],
       "cell_type": "markdown"
     },
@@ -87,8 +87,8 @@
       "source": [
         "### Composite masks\n",
         "**IMPORTANT :** The URL for the ```composite_mask``` from exports older than 30 days will no longer be accessible. To obtain a functional URL after this period, please generate a new export for the mask.\n",
-        "1. A single mask url contains all mask instances from a single label. For videos a composite mask contains all mask instances for the frame in each label. \n",
-        "2. The export and mask URL adhere to the following convention:\n",
+        "1. A single mask URL contains all mask instances from a single label. For videos a composite mask contains all mask instances for the frame in each label. \n",
+        "2. The export and mask URL adheres to the following convention:\n",
         "  - ***Image example***\n",
         "```json \n",
         "  {\n",
@@ -244,4 +244,4 @@
       "execution_count": null
     }
   ]
-}
+}