Commit changes for Sys admin budget

help/system-admin-guide/budgets/README.md

@@ -1,6 +1,6 @@
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 sidebar_navigation:
-  title: Budget
+  title: Budgets
   priority: 680
 description: Define budgets in OpenProject.
 robots: index, follow
@@ -8,19 +8,16 @@ keywords: budgets
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 # Budgets
 
-Coming soon!
+You can configure costs in OpenProject and can create cost types.
 
-## Overview
+Navigate to -> *Administration* -> *Budgets*.
 
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+## Settings
 
+Define settings for OpenProject costs.
+
+1. Configure the **currency used in the system, e.g. EUR**.
+2. **Specify the format of the currency**, if the number should be before or after the currency, e.g. 10 EUR, or $ 10.
+3. Press the blue **Apply** button to save your changes.
+
+![Sys-admin-configure-costs](Sys-admin-configure-costs.png)