Fixed typo in Development-Guide-Rad-Tool-Master-Detail.md

Author: appulus

docs/en/Development-Guide-Rad-Tool-Master-Detail.md

@@ -2,7 +2,7 @@
 
 You can create master detail tables using Power Tools.
 
-To create master-detail tables you can follow that steps.
+To create master-detail tables you can follow these steps.
 
 1. **Creating a child entity**
    You should create necessary child entities using Power Tools 
@@ -28,4 +28,4 @@ Note: You can create list views for child entities too. Power Tools will change
 
 (If you manage child entity in base entity page everything about the base entity will be automatically managed.)
 
-<img src="images/rad-tool-master-detail-screenshot-3.png" alt="Rad Tool Child Entity" class="img-thumbnail" />
+<img src="images/rad-tool-master-detail-screenshot-3.png" alt="Rad Tool Child Entity" class="img-thumbnail" />