diff --git a/docs/DeveloperGuide.md b/docs/DeveloperGuide.md
index 698bfbb0cbc..997b05ba059 100644
--- a/docs/DeveloperGuide.md
+++ b/docs/DeveloperGuide.md
@@ -312,6 +312,9 @@ The following sequence diagram shows how the gather emails by financial plan ope
 ### Expanded Find feature
 
 The enhanced find mechanism is facilitated by the `CombinedPredicate` and utilises the existing `FindCommand` structure.
+
+#### Implementation Overview
+
 Here's a sequence diagram that demonstrates how `FindCommand` works.
 
 ![FindCommandSequenceDiagram](images/FindCommandSequenceDiagram.png)
@@ -339,7 +342,7 @@ For now, we only allow for searching for `Name`, `FinancialPlan` and `Tag` field
 searched fields, but extending the feature to search in other fields is possible by creating the appropriate
 `Predicate` class and modifying the `FindCommandParser`.
 
-#### Design Considerations:
+#### Design Considerations
 
 **Aspect: How to implement find for multiple fields**
 * **Alternative 1 (current choice):** Use one unified command and format.
diff --git a/src/main/java/seedu/address/model/person/predicates/PersonContainsKeywordsPredicate.java b/src/main/java/seedu/address/model/person/predicates/PersonContainsKeywordsPredicate.java
index 43e47031784..1c0efe9dde8 100644
--- a/src/main/java/seedu/address/model/person/predicates/PersonContainsKeywordsPredicate.java
+++ b/src/main/java/seedu/address/model/person/predicates/PersonContainsKeywordsPredicate.java
@@ -5,7 +5,8 @@
 import seedu.address.model.person.Person;
 
 /**
- * Tests if a {@code Person} contains certain keywords in a certain field.
+ * Tests if a {@code Person} contains certain keywords in a certain field. Note that the implementing predicates are not
+ * required to test the validity of the keywords.
  */
 public interface PersonContainsKeywordsPredicate extends Predicate<Person> {