Merge pull request #277 from AY2324S1-CS2103T-F08-0/fix-ug-bugs

Fix some minor errors in UG

docs/UserGuide.md

@@ -124,12 +124,10 @@ The app helps students to consolidate important data, such as profiles of profes
     </tabs>
 </box>
 
-4. The application should launch, resembling the UI shown below
+4. The application should launch, resembling the UI shown below.
 
 <img src="./images/Ui.png" width="100%" >
 
---- {.dotted .thick-1 .border-primary}
-
 5. Refer to the [Features](#features) below for details of each command.
 
 --- {.dotted .thick-1 .border-primary}
@@ -382,7 +380,8 @@ Unable to add a person without name
 Example 5.1: `add --name`
 
 ```
-Names should only contain alphanumeric characters and spaces, and it should not be blank
+Names should only contain alphanumeric characters and spaces, 
+and it should not be blank
 ```
 
 Example 5.2: `add --name Charlie --role teacher`