diff --git a/docs/DeveloperGuide.adoc b/docs/DeveloperGuide.adoc
index 5e67196c6c7d..9b07586d5a12 100644
--- a/docs/DeveloperGuide.adoc
+++ b/docs/DeveloperGuide.adoc
@@ -1646,14 +1646,14 @@ These instructions only provide a starting point for testers to work on; testers
    Expected: A student named Damith with the above particulars will be added into HR+. The student will be shown in the persons list panel.
 .. Add a resume pdf file named resume.pdf to the same folder as the jar file. It also must be valid PDF and smaller than 1MB. +
    Add an image named image.jpg to the same folder as the jar file. It also must be valid image file and smaller than 1MB. +
-   Command: `add n/Irene Bae p/83627133 e/irene@sm.com a/341, Woodlands Drive 20, #22-15 u/SNU y/2020 m/Computer Engineering g/4.87 j/Software Tester r/resume.pdf i/image.jpg +
+   Command: `add n/Irene Bae p/83627133 e/irene@sm.com a/341, Woodlands Drive 20, #22-15 u/SNU y/2020 m/Computer Engineering g/4.87 j/Software Tester r/resume.pdf i/image.jpg` +
    Expected: A student named Irene is added with the above particulars. A resume and a profile image will be added.
 
 === Showing info panel or resume
 
 . Showing either student info or resume in the right panel
 
-.. Prerequisites: A student is selected using the `select` command.
+.. Prerequisites: A student is selected using the `select` command. The student selected has a resume added into HR+.
 .. Command: `show resume` +
    Expected: The resume of the student is displayed when it is available.
    Command: `show info` +
diff --git a/docs/UserGuide.adoc b/docs/UserGuide.adoc
index 37efb536aab5..5e0a049ffde8 100644
--- a/docs/UserGuide.adoc
+++ b/docs/UserGuide.adoc
@@ -62,6 +62,14 @@ e.g. typing *`help`* and pressing kbd:[Enter] will open the help window.
 [TIP]
 The command keywords and parameters are *case sensitive*.
 
+[TIP]
+There is a floating real-time parsing panel below the command box that shows parsed results before commands are executed. +
+However, it only verifies that the command format is correct. Commands that are shown to be "valid commands" might not execute successfully. +
+For example, when you use a correct `add` command format to add a duplicate student into HR+, the real time parser shows that it is a valid command but it will not be successfully executed.
+
+[TIP]
+If you want to hide the real-time parsing panel, press kbd:[Tab].
+
 === Viewing help : `help`
 
 Format: `help`
@@ -405,8 +413,8 @@ Examples:
 
 * `filter y/2020` +
 Returns all persons whose graudation year that is exactly 2020
-* `filter y/2019-2021' r/4.3, 4.5-5.0
-Returns all persons whose graduation year between 2019 and 2021, and whose rating is either 4.3, or between 4.5 to 5.0
+* `filter y/2019-2021 r/4.3, 4.5-5.0`
+Returns all persons whose graduation year between 2019 and 2021, and whose overall rating score is either 4.3, or between 4.5 to 5.0
 
 Since v1.4, filter command supports filtering by cGPA and interview date. It now takes the format:
 `Format: `filter [y/KEYWORD_RANGE] [r/KEYWORD_RANGE] [g/CGPA_RANGE] [d/INTERVIEW_DATE_RANGE]`