excluded unit 4 from search

Author: infinite0x20

docs/textbook/unit4/index.md

@@ -5,6 +5,7 @@ layout: default
 parent: Textbook
 has_toc: false
 nav_exclude: true
+search_exclude: true
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 ## Unit 4

docs/textbook/unit4/lesson16-greek-medicine/index.md

@@ -5,6 +5,7 @@ layout: default
 parent: Unit 4
 grandparent: Textbook
 nav_exclude: true
+search_exclude: true
 ---
 
 # Lesson 16: Ancient Greek Health and Medicine

docs/textbook/unit4/lesson17-roman-medicine/index.md

@@ -5,6 +5,7 @@ layout: default
 parent: Unit 4
 grandparent: Textbook
 nav_exclude: true
+search_exclude: true
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 # Lesson 17: Ancient Roman Health and Medicine

docs/textbook/unit4/lesson18-latin/index.md

@@ -5,6 +5,7 @@ layout: default
 parent: Unit 4
 grandparent: Textbook
 nav_exclude: true
+search_exclude: true
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 # Lesson 18: The Latin Language 

docs/textbook/unit4/lesson19-anatomy/index.md

@@ -5,6 +5,7 @@ layout: default
 parent: Unit 4
 grandparent: Textbook
 nav_exclude: true
+search_exclude: true
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 # Lesson 19: Anatomical Naming

docs/textbook/unit4/lesson20-medical-naming/index.md

@@ -5,6 +5,7 @@ layout: default
 parent: Unit 4
 grandparent: Textbook
 nav_exclude: true
+search_exclude: true
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 # Lesson 20: Naming of Diseases and Treatments

docs/textbook/unit4/project4-medschool/index.md

@@ -5,6 +5,7 @@ layout: default
 parent: Unit 4
 grandparent: Textbook
 nav_exclude: true
+search_exclude: true
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 # Project 4: Medical School 🩺