[docs] Miscellaneous docs clean up (#2604)

* remove unused substitutions

* move images

* fix image path

Author: colleenmcginnis

docs/docset.yml

@@ -16,7 +16,7 @@ This document contains code snippets to show you how to connect to various {{es}
 
 If you are using [Elastic Cloud](https://www.elastic.co/cloud), the client offers an easy way to connect to it. You need the Cloud ID that you can find in the cloud console, then your username and password.
 
-:::{image} ../images/cloud_id.png
+:::{image} images/cloud_id.png
 :alt: Cloud ID
 :::
 
@@ -34,19 +34,19 @@ client = Elasticsearch::Client.new(
 
 You can also connect to the Cloud by using API Key authentication. You can generate an `API key` in the `Management` page under the section `Security`.
 
-:::{image} ../images/cloud_api_key.png
+:::{image} images/cloud_api_key.png
 :alt: API key
 :::
 
 When you click on `Create API key` you can choose a name and set the other options (eg. restrict privileges, expire after time, etc).
 
-:::{image} ../images/api_key_name.png
+:::{image} images/api_key_name.png
 :alt: Choose an API name
 :::
 
 After this step you will get the `API key` in the API keys page.
 
-:::{image} ../images/cloud_api_key.png
+:::{image} images/cloud_api_key.png
 :alt: API key
 :::
 

docs/reference/connecting.md

@@ -38,13 +38,13 @@ client = Elasticsearch::Client.new(
 
 Your Elasticsearch endpoint can be found on the **My deployment** page of your deployment:
 
-:::{image} ../images/es_endpoint.jpg
+:::{image} images/es_endpoint.jpg
 :alt: Finding Elasticsearch endpoint
 :::
 
 You can generate an API key on the **Management** page under Security.
 
-:::{image} ../images/create_api_key.png
+:::{image} images/create_api_key.png
 :alt: Create API key
 :::