fix links

doc/source/internal/helpcenter_training/dashboards/index.rst

@@ -32,7 +32,7 @@ steps:
 3. Visualization of data on the Grafana server.
 4. Configuration of the Alert Manager and dispatch of alerts to Zulip.
 
-.. figure:: prs_overview.png
+.. figure:: grafana_flow_overview.png
    :align: center
 
 The components for all steps are hosted in the Open Telekom Cloud
@@ -75,14 +75,14 @@ Open PRs Dashboard
 
 This is a common view of the dashboard:
 
-.. figure:: prs_dashboard.png
+.. figure:: grafana_pull_requests_overview.png
    :align: center
 
 Located in the upper left corner of the dashboard is a drop-down list
 titled *Squad.* This list serves as a dynamic filter, directly
 influencing the data displayed in specific panels on the dashboard.
 
-.. figure:: prs_filter.png
+.. figure:: grafana_pull_requests_var_squad.png
    :align: center
 
 The **Open PRs Dashboard** consists of the following panels:
@@ -129,7 +129,7 @@ The **Open PRs Dashboard** consists of the following panels:
 
 Open Issues Dashboard
 ~~~~~~~~~~~~~~~~~~~~~
-.. image:: open_issues_overview.png
+.. image:: grafana_open_issues_overview.png
    :align: center
 
 In the upper left corner you can see drop-down lists: *Squad*,
@@ -138,12 +138,12 @@ In the upper left corner you can see drop-down lists: *Squad*,
 * **Squad:** represents distinct "Squads" for the *Open Issues
   Dashboard*. Supports multiple selections including an "All" option.
 
-.. image:: open_issues_squad.png
+.. image:: grafana_open_issues_var_squad.png
 
 * **Environment:** represents distinct "Environments" for *Open Issues
   Dashboard*. Supports multiple selections and an "All" option.
 
-.. image:: open_issues_environment.png
+.. image:: grafana_open_issues_var_environment.png
 
 * **Duration:** variable with two pre-defined options: "ASC" and
   "DESC". Allows sorting data based on duration.
@@ -210,7 +210,7 @@ Dashboard is for.
 
 The dashboard of recently modified documents contains four panels.
 
-.. image:: last_released_dashboard.png
+.. image:: grafana_last_commit.png
 
 * **Days Since Last Release by Services:** it displays a bar chart
   with the service names as categories and their respective maximum