Fix some typos and improve OAM text

Author: willemarcel

demo/oam/OpenAerialMap_demo.ipynb

@@ -4,20 +4,20 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Case of Study - Open Aeria Map (OAM)\n",
+    "## Case of Study - Open Aerial Map (OAM)\n",
     "\n",
     "https://map.openaerialmap.org\n",
     "\n",
     "> OpenAerialMap (OAM) is a set of tools for searching, sharing, and using openly licensed satellite and unmanned aerial vehicle (UAV) imagery.\n",
     "\n",
-    "Believe it or not but OAM was created more than 9 years ago!!! The design was innovative and the backend was also in advance. It was one of the first application using dynamic tiling (https://github.com/mojodna/marblecutter-openaerialmap) and STAC like metadata (https://github.com/hotosm/oam-api).\n",
+    "Believe it or not, but OAM was created more than 9 years ago!!! The design was innovative and the backend was also advanced. It was one of the first applications using dynamic tiling (https://github.com/mojodna/marblecutter-openaerialmap) and STAC like metadata (https://github.com/hotosm/oam-api).\n",
     "\n",
-    "Looking at the web page and backend today, it feels still great and better than a lot of similar projects.\n",
+    "Looking at the web app and backend today, it feels still great and better than a lot of similar projects.\n",
     "\n",
     "\n",
     "###  Goals\n",
     "\n",
-    "This Notebook aims to show how to `scrape` the OAM api to create proper STAC Items/Collection and ingest them in a eoAPI stack\n",
+    "This Notebook aims to show how to `scrape` the OAM api to create proper STAC Items/Collection and ingest them in an eoAPI stack\n",
     "\n",
     "\n",
     "### Requirements\n",
@@ -262,7 +262,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#### Let's try to visualize dataset from a specific Provider\n",
+    "#### Let's try to visualize a dataset from a specific Provider\n",
     "\n",
     "We can filter use the STAC API to find the Items which have the `properties.provider=='CEN NA - MD'` field"
    ]
@@ -517,7 +517,7 @@
     }
    ],
    "source": [
-    "# Let's visualize on Item using the raster API\n",
+    "# Let's visualize one Item using the raster API\n",
     "import httpx\n",
     "import json\n",
     "\n",