Remove trailing whitespace in documents

Author: hengjeekuan

README.md

@@ -8,7 +8,7 @@
 
 This project is based on the AddressBook-Level3 project created by the [SE-EDU initiative](https://se-education.org).
 * _ResiConnect_ is a desktop application used to manage contact details specifically targeted at Resident Assistants (RA)/ Resident Fellows (RF).
-* RAs/ RFs have to manage many students and other RAs/ RFs under them. Hence, with an address book to note down all the important information about the students/ other RAs will be helpful for coordinating hall events, emergency situations, etc. 
+* RAs/ RFs have to manage many students and other RAs/ RFs under them. Hence, with an address book to note down all the important information about the students/ other RAs will be helpful for coordinating hall events, emergency situations, etc.
 * While it has a GUI, most of the user interactions happen using a CLI (Command Line Interface).
 
 

docs/DeveloperGuide.md

@@ -282,7 +282,7 @@ _{Explain here how the data archiving feature will be implemented}_
 * is reasonably comfortable using CLI apps
 
 **Value proposition**: ResiConnect helps a RA/RF manage contacts of the students of a hall or contacts of the students, staff and external vendors of hall events.
-Having an address book to note down all the important information about the people they are in charge of. It would be helpful for coordinating hall events, emergency situation, etc. 
+Having an address book to note down all the important information about the people they are in charge of. It would be helpful for coordinating hall events, emergency situation, etc.
 
 
 ### User stories
@@ -404,7 +404,7 @@ Priorities: High (must have) - `* * *`, Medium (nice to have) - `* *`, Low (unli
 1. Primary Input Method: The system should prioritize `CLI` for all core functionalities.
 2. One-Shot Commands: The system should support one-shot commands for users to perform tasks quickly.
 
-#### Maintainability 
+#### Maintainability
 
 1. Code Quality: The codebase should adhere to `Java coding standards` and include comprehensive documentation.
 2. Modularity: The system should be modular, allowing for easy updates or additions of new features.
@@ -426,7 +426,7 @@ Priorities: High (must have) - `* * *`, Medium (nice to have) - `* *`, Low (unli
 * **Resident**:
 * **Mainstream OS**: Windows, Linux, Unix, MacOS
 * **Private contact detail**: A contact detail that is not meant to be shared with others
- 
+
 
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src/main/java/seedu/address/logic/commands/AddExternalCommand.java

@@ -65,4 +65,5 @@ public String toString() {
                 .add("toAdd", toAdd)
                 .toString();
     }
+
 }