Merge pull request #317 from Rachael-Chan/PED-Fixes

Fix PED

docs/DeveloperGuide.md

@@ -295,6 +295,12 @@ Priorities: High (must have) - `* * *`, Medium (nice to have) - `* *`, Low (unli
 
   Use case ends.
 
+* 2b. The given list command has extraneous parameters.
+
+  * 2b1. SocialBook shows an error message.
+
+    Use case ends.
+
 ##### **Use case: UC02 - Add a contact**
 
 **MSS**

docs/UserGuide.md

@@ -92,6 +92,7 @@ SocialBook is a **desktop app designed for social workers in Singapore, optimize
 * You can include hyphens and spaces as necessary between words for tags that are multiple words long!
 * To indicate no tags for a contact, you can `add` a contact without any `t/` prefixes.
     * Take note that `add`ing a contact with a `t/` prefix followed by whitespace is not supported. Omit the `t/` tag for contacts without tags.
+* Take note that tags are case sensitive i.e `financial` and `FINANCIAL` would not be considered as duplicates.
 
 ### Remarks
 * Remarks are optional for contacts, and are denoted by the `r/` prefix.
@@ -360,6 +361,7 @@ Furthermore, certain edits can cause the SocialBook to behave in unexpected ways
 This is due to the way that parsing is handled: any text matching special prefixes will be identified as such.
 To work around this, please prepend a `_`, or any other accepted special character, in front of any input fields that contain a special prefix.
 5. Entering an invalid emergency contact will produce the same error message as an invalid phone number. When receiving an error message about phone numbers, check both the `ec/` and `p/` field, if both are present.
+6. Tags with the same name but with different cases are considered two different tags i.e `free` and `FREE` are not considered duplicates.
 
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