[skip-ci][Maps] Improve Maps intro page (elastic#44721)

* [skip-ci][Maps] Improve Maps intro page

* review feedback

* trim list to 7 items, add link to getting started guide, change all references to app to Elastic Maps

* review feedback

* bold Elastic Maps in intro page

docs/maps/connect-to-ems.asciidoc

@@ -4,9 +4,9 @@
 
 https://www.elastic.co/elastic-maps-service[Elastic Maps Service (EMS)] is a service that hosts
 tile layers and vector shapes of administrative boundaries.
-If you are using Kibana's out-of-the-box settings, the **Maps** application is already configured to use EMS.
+If you are using Kibana's out-of-the-box settings, **Elastic Maps** is already configured to use EMS.
 
-The **Maps** application makes requests directly from the browser to EMS.
+**Elastic Maps** makes requests directly from the browser to EMS.
 To proxy EMS requests through the Kibana server, set `map.proxyElasticMapsServiceInMaps` to `true` in your <<settings, kibana.yml>> file.
 
 
@@ -19,5 +19,5 @@ behind a firewall. If this happens, you can disable the EMS connection to avoid
 To disable EMS, change your <<settings, kibana.yml>> file.
 
 . Set `map.includeElasticMapsService` to `false` to turn off the EMS connection.
-. Set `map.tilemap.url` to the URL of your tile server. This configures the **Maps** default tile layer.
+. Set `map.tilemap.url` to the URL of your tile server. This configures the default tile layer of **Elastic Maps**.
 . (Optional) Set `map.regionmap` to the vector shapes of the administrative boundaries that you want to use.

docs/maps/index.asciidoc

@@ -1,11 +1,23 @@
 [role="xpack"]
 [[maps]]
-= Maps
+= Elastic Maps
 
 [partintro]
 --
 
-The **Maps** application enables you to parse through your geographical data at scale, with speed, and in real time. With features like multiple layers and indices in a map, plotting of raw documents, dynamic client-side styling, and global search across multiple layers, you can understand and monitor your data with ease.
+*Elastic Maps* enables you to parse through your geographical data at scale, with speed, and in real time. With features like multiple layers and indices in a map, plotting of raw documents, dynamic client-side styling, and global search across multiple layers, you can understand and monitor your data with ease.
+
+With *Elastic Maps*, you can:
+
+* Create maps with multiple layers and indices.
+* Upload GeoJSON files into Elasticsearch.
+* Embed your map in Dashboards.
+* Plot individual documents or use aggregations to plot any data set, no matter how large.
+* Create choropleth maps.
+* Use data driven styling to symbolize features from property values.
+* Focus the data you want to display with searches.
+
+Start your tour of *Elastic Maps* with the <<maps-getting-started, getting started tutorial>>.
 
 [role="screenshot"]
 image::maps/images/sample_data_ecommerce.png[]

docs/maps/maps-getting-started.asciidoc

@@ -1,8 +1,8 @@
 [role="xpack"]
 [[maps-getting-started]]
-== Getting started with Maps
+== Getting started with Elastic Maps
 
-You work with *Maps* by adding layers. The data for a layer can come from
+You work with *Elastic Maps* by adding layers. The data for a layer can come from
 sources such as {es} documents, vector sources, tile map services, web map
 services, and more. You can symbolize the data in different ways.
 For example, you might show which airports have the longest flight
@@ -14,7 +14,7 @@ light to dark.
 image::maps/images/sample_data_web_logs.png[]
 
 [[maps-read-only-access]]
-NOTE: If you have insufficient privileges to create or save maps, a read-only icon 
+NOTE: If you have insufficient privileges to create or save maps, a read-only icon
 appears in the application header. The buttons to create new maps or edit
 existing maps won't be visible. For more information on granting access to
 Kibana see <<xpack-security-authorization>>.
@@ -25,7 +25,7 @@ image::maps/images/read-only-badge.png[Example of Maps' read only access indicat
 [float]
 === Prerequisites
 Before you start this tutorial, <<add-sample-data, add the web logs sample data set>>. Each
-sample data set includes a map to go along with the data. Once you've added the data, open *Maps* and
+sample data set includes a map to go along with the data. Once you've added the data, open *Elastic Maps* and
 explore the different layers of the *[Logs] Total Requests and Bytes* map.
 You'll re-create this map in this tutorial.
 
@@ -44,7 +44,7 @@ In this tutorial, you'll learn to:
 
 The first thing to do is to create a new map.
 
-. If you haven't already, open *Maps*.
+. If you haven't already, open *Elastic Maps*.
 . On the maps list page, click *Create map*.
 . Set the time range to *Last 7 days*.
 +

docs/maps/search.asciidoc

@@ -2,7 +2,7 @@
 [[maps-search]]
 == Searching your data
 
-The **Maps** application embeds the query bar for real-time ad hoc search.
+**Elastic Maps** embeds the query bar for real-time ad hoc search.
 Only layers requesting data from {es} are filtered when you submit a search request.
 
 You can create a layer that requests data from {es} from the following:

docs/maps/trouble-shooting.asciidoc

@@ -1,13 +1,13 @@
 [role="xpack"]
 [[maps-troubleshooting]]
-== Maps troubleshooting
+== Elastic Maps troubleshooting
 
 Use the information in this section to inspect Elasticsearch requests and find solutions to common problems.
 
 [float]
 === Inspect Elasticsearch requests
 
-The Maps application uses the {ref}/search-search.html[{es} search API] to get documents and aggregation results from {es}. To troubleshoot these requests, open the Inspector, which shows the most recent requests for each layer. You can switch between different requests using the *Request* dropdown.
+*Elastic Maps* uses the {ref}/search-search.html[{es} search API] to get documents and aggregation results from {es}. To troubleshoot these requests, open the Inspector, which shows the most recent requests for each layer. You can switch between different requests using the *Request* dropdown.
 
 [role="screenshot"]
 image::maps/images/inspector.png[]