docs: update images (close #860) [skip ci]

.github/readme/partials/documentation/organizations.md

@@ -8,7 +8,8 @@ While *metrics* targets mainly user accounts, it's possible to render metrics fo
 
 Setup is mostly the same as for user accounts. A personal access token from an user account is required excepted that `read:org` scope must be enabled, **whether you are member of the target organization or not**.
 
-![Add read:org scope to personal token](/.github/readme/imgs/setup_token_org_read_scope.png)
+![Add read:org scope to personal token](/.github/readme/imgs/setup_token_org_read_scope.light.png#gh-light-mode-only)
+![Add read:org scope to personal token](/.github/readme/imgs/setup_token_org_read_scope.dark.png#gh-dark-mode-only)
 
 `user` option will need to be set to organization name instead.
 
@@ -33,7 +34,8 @@ It is possible to host workflows in the `.github` repository of organizations, a
 By default, GitHub only display public memberships.
 Membership visibility canbe managed in the `People` tab of your organization.
 
-![Publish organization membership](/.github/readme/imgs/setup_public_membership_org.png)
+![Publish organization membership](/.github/readme/imgs/setup_public_membership_org.light.png#gh-light-mode-only)
+![Publish organization membership](/.github/readme/imgs/setup_public_membership_org.dark.png#gh-dark-mode-only)
 
 > ⚠️ Seeing your organization membership in your profile **does not** mean that it is visible from other users! You can check this by viewing your profile in an private browser window.
 

.github/readme/partials/documentation/setup/action.md

@@ -6,11 +6,13 @@ Setup a GitHub Action which runs periodically and pushes generated images to a r
 
 Create a repository with the same name as your GitHub login (if it doesn't exist).
 
-![Setup personal repository](/.github/readme/imgs/setup_personal_repository.png)
+![Setup personal repository](/.github/readme/imgs/setup_personal_repository.light.png#gh-light-mode-only)
+![Setup personal repository](/.github/readme/imgs/setup_personal_repository.dark.png#gh-dark-mode-only)
 
 Its `README.md` will be displayed on your user profile:
 
-![GitHub Profile Example](/.github/readme/imgs/example_github_profile.png)
+![GitHub Profile Example](/.github/readme/imgs/example_github_profile.light.png#gh-light-mode-only)
+![GitHub Profile Example](/.github/readme/imgs/example_github_profile.dark.png#gh-dark-mode-only)
 
 ## 1️ Create a GitHub personal token
 
@@ -27,11 +29,13 @@ A a general rule, the following scopes may be required:
 
 > 💡 For security reasons, it is advised to always use the least amount of scopes. It is possible to prevent security issues by [forking this repository](https://github.com/lowlighter/metrics/fork) and using it in your workflow instead (more information available in step 3)
 
-![Setup a GitHub personal token](/.github/readme/imgs/setup_personal_token.png)
+![Setup a GitHub personal token](/.github/readme/imgs/setup_personal_token.light.png#gh-light-mode-only)
+![Setup a GitHub personal token](/.github/readme/imgs/setup_personal_token.dark.png#gh-dark-mode-only)
 
 A scope-less token can still display private contributions by enabling `Include private contributions on my profile` in account settings:
 
-![Enable "Include private contributions on my profile`"](/.github/readme/imgs/setup_private_contributions.png)
+![Enable "Include private contributions on my profile`"](/.github/readme/imgs/setup_private_contributions.light.png#gh-light-mode-only)
+![Enable "Include private contributions on my profile`"](/.github/readme/imgs/setup_private_contributions.dark.png#gh-dark-mode-only)
 
 When a plugin has not enough scopes to operate (and `plugins_errors_fatal` is disabled), an error will be reported in the rendering like below:
 
@@ -41,7 +45,8 @@ When a plugin has not enough scopes to operate (and `plugins_errors_fatal` is di
 
 Go to the `Settings` of your repository and to create a new secret and paste your freshly generated GitHub token there.
 
-![Setup a repository secret](/.github/readme/imgs/setup_repository_secret.png)
+![Setup a repository secret](/.github/readme/imgs/setup_repository_secret.light.png#gh-light-mode-only)
+![Setup a repository secret](/.github/readme/imgs/setup_repository_secret.dark.png#gh-dark-mode-only)
 
 ## 3️ Setup GitHub Action workflow
 
@@ -67,7 +72,8 @@ jobs:
 
 Rendered metrics will be committed to repository on each run.
 
-![Action update example](/.github/readme/imgs/example_action_update.png)
+![Action update example](/.github/readme/imgs/example_action_update.light.png#gh-light-mode-only)
+![Action update example](/.github/readme/imgs/example_action_update.dark.png#gh-dark-mode-only)
 
 ### 3️.1️ Choosing between `@latest`, `@master`/`@main`, a fork or a pinned version
 

.github/readme/partials/documentation/setup/shared.md

@@ -6,11 +6,13 @@ For convenience, a free shared instance is available at [metrics.lecoq.io](https
 
 Create a repository with the same name as your GitHub login (if it doesn't exist).
 
-![Setup personal repository](/.github/readme/imgs/setup_personal_repository.png)
+![Setup personal repository](/.github/readme/imgs/setup_personal_repository.light.png#gh-light-mode-only)
+![Setup personal repository](/.github/readme/imgs/setup_personal_repository.dark.png#gh-dark-mode-only)
 
 Its `README.md` will be displayed on your user profile:
 
-![GitHub Profile Example](/.github/readme/imgs/example_github_profile.png)
+![GitHub Profile Example](/.github/readme/imgs/example_github_profile.light.png#gh-light-mode-only)
+![GitHub Profile Example](/.github/readme/imgs/example_github_profile.dark.png#gh-dark-mode-only)
 
 ## 2️ Configure *metrics*
 

.github/readme/partials/documentation/setup/web.md

@@ -14,7 +14,8 @@ No additional scopes are required.
 
 > 💡 For security reasons, it is advised to use a scope-less token for web instances.
 
-![Setup a GitHub personal token](/.github/readme/imgs/setup_personal_token.png)
+![Setup a GitHub personal token](/.github/readme/imgs/setup_personal_token.light.png#gh-light-mode-only)
+![Setup a GitHub personal token](/.github/readme/imgs/setup_personal_token.dark.png#gh-dark-mode-only)
 
 ## 2️ Configure *metrics*