fix capitalization

Author: GitHubber17

articles/marketplace/power-bi-visual-properties.md

@@ -16,7 +16,7 @@ This page lets you define the [categories](./categories.md) used to group your o
 
 ## Categories
 
-Select up to three **[Categories](./categories.md)** for grouping your offer into the appropriate marketplace search areas. This table shows the categories that are available for Power Bi Visuals.
+Select up to three **[Categories](./categories.md)** for grouping your offer into the appropriate marketplace search areas. This table shows the categories that are available for Power BI Visuals.
 
 | Category | Description |
 | ------------ | ------------- |
@@ -99,4 +99,4 @@ Select **Save draft** before continuing to the next tab in the left-nav menu, **
 
 ## Next steps
 
-- [**Offer listing**](power-bi-visual-offer-listing.md)
+- [**Offer listing**](power-bi-visual-offer-listing.md)