Add service account support for organization endpoints and update docs images

docs/getting-started/dashboard/organization.mdx

@@ -24,6 +24,14 @@ To add a member to your organization, scroll down to the "Organization Members"
   projects by default.
 </Note>
 
+## Service Accounts
+
+Service accounts represent machine identities such as VMs or application clients that can authenticate with Infisical. They can be provisioned read/write permissions for project(s) and environment(s).
+
+To add a service account to your organization, scroll down to the "Service Accounts" section and create a service account. Afterwards, you can press on the edit button beside the service account to provision it permissions.
+
+![organization service accounts](../../images/organization-service-accounts.png)
+
 ## Incident contacts
 
 Incident contacts of an organization are alerted if anything abnormal is detected within the operations of an organization.

docs/getting-started/dashboard/project.mdx

@@ -25,16 +25,16 @@ In most cases, environment variables belong to specific environments: developmen
 
 ![project environment](../../images/project-environment.png)
 
-### Personal/Shared scoping
+### Personal overrides
 
-Every environment variable is classified as either personal or shared.
+Every environment variable value can be overriden with a custom value.
 
-- A personal environment variable is one created by a user of a project to be available for that user only.
-- A shared environment variable is one created by a user of a project to be available for other users of the project.
+- An overriden value can only be read and accesssed by the user that overrode the original shared value. 
+- A (default) shared value can be read and accesssed by other users in a project.
 
-You can toggle the classification of an environment variable by pressing on its settings:
+You can turn overrides on/off by toggling the override/branch icon:
 
-![project variable toggle open](../../images/project-envar-toggle-open.png)
+![project variable toggle open](../../images/project-envar-override.png)
 
 ### Search
 
@@ -42,12 +42,6 @@ You can search for any environment variable by its key.
 
 ![project search](../../images/project-search.png)
 
-### Sort
-
-You can sort environment variables alphabetically by their keys.
-
-![project sort](../../images/project-sort.png)
-
 ### Hide/Un-hide
 
 You can hide or un-hide the values of your environment variables. By default, the values are hidden for your privacy.

docs/getting-started/quickstart.mdx

@@ -9,7 +9,7 @@ These examples demonstrate how to store and fetch environment variables from [In
 
 1. Login or create an account at `app.infisical.com`.
 2. Create a new project.
-3. Populate your environment variables as in the image below.
+3. Keep the default environment variables or populate them as in the image below.
 
 ![project quickstart](../images/project-quickstart.png)