diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 [![codecov](https://codecov.io/gh/AY2324S1-CS2103T-W08-2/tp/graph/badge.svg?token=DAJLBHDPYQ)](https://codecov.io/gh/AY2324S1-CS2103T-W08-2/tp)
 
 # Modulight
-![Ui](docs/images/Ui_navigate.png)
+![Ui](docs/images/Ui.png)
 
 Modulight is a **Desktop application for managing student grades**. It is a system to track students and their performance on graded components, utility functions to get statistics on the cohort and certain subgroups.
 
diff --git a/docs/UserGuide.md b/docs/UserGuide.md
index 99e7f7a11b3..0379095dd5e 100644
--- a/docs/UserGuide.md
+++ b/docs/UserGuide.md
@@ -154,7 +154,7 @@ The following section gives an overview of the parameters used for the commands
 
 | Parameter | Description                                                                                                                                                                                       | Constraints                                                                                                                                                                                                                    | Valid Examples                                   | Invalid Examples            |
 |-----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------|-----------------------------|
-| INDEX     | Used in [edit commands](#edit-commands) and [delete commands](#delete-commands), The [index](#glossary) of the target student, score or component                                                 | Positive integer                                                                                                                                                                                                               | 1, 10, 21                                        | -2, 0, 03                   |
+| INDEX     | Used in [edit commands](#edit-commands) and [delete commands](#delete-commands), The [index](#glossary) of the target student, score or component                                                 | Positive integer                                                                                                                                                                                                               | 1, 10, 21                                        | -2, 0                       |
 | o/        | Used in the [sortStu](#sorting-students-sortstu) command, the selected parameter of students to be sorted                                                                                         | Only parameters in the list (The full list can be found under the description of [sortStu](#sorting-students-sortstu) command) are allowed                                                                                     | n, totalscore, tut                               | studentName, overall score  |
 | r/        | Used in the [sortStu](#sorting-students-sortstu) and [sortStuScore](#sorting-students-scores-sortscore) commands, the reverse order (to arrange the list either in ascending or descending order) | Only parameters in the list (The full list can be found under the description of [sortStu](#sorting-students-sortstu) and [sortScore](#sorting-students-scores-sortscore) commands) are allowed                                | t, f, decreasing                                 | True, ascending             |
 | st/       | Used in the [stats](#calculating-overall-statistics-stats) and [compStats](#calculating-statistics-of-a-graded-component-compstats) commands, the statistical measures to be calculated           | Only parameters in the list (The full list can be found under the description of [stats](#calculating-overall-statistics-stats) and [compStats](#calculating-statistics-of-a-graded-component-compstats) commands) are allowed | max, upperQuartile                               | quartile, correlation       |
@@ -189,7 +189,7 @@ The following section gives an overview of the parameters used for the commands
 ModuLight comes with a GUI to allow for nice visual feedback for our users. Here is a quick run through of the different sections of our GUI, as well as some notes regarding the use of the GUI.
 
 ### Quick Orientation:
-![Ui overview](images/Ui_navigate.png)
+![Ui overview](images/Ui.png)
 
 Here is a summary of each GUI component within ModuLight.
 
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