Fix section numbering in chapter 5

Author: solomon.legodi

website/docs/chapter-03/02_variables.md

@@ -35,7 +35,7 @@ Variables can be created and assigned in various ways, such as:
 
 (*) These methods are not part of this syllabus.
 
-Beside variables created by the user, Robot Framework also supports **Built-in Variables** that are explained in the [5.1.6 Built-In Variables](chapter-05/01_advanced_variables.md#516-built-in-variables) chapter.
+Beside variables created by the user, Robot Framework also supports **Built-in Variables** that are explained in the [5.1.6 Built-In Variables](chapter-05/01_advanced_variables.md#515-built-in-variables) chapter.
 
 
 

website/docs/chapter-05/01_advanced_variables.md

@@ -305,7 +305,7 @@ As long as a value is iterable, it can be assigned to a list variable using the
 
 **Note**: Strings are iterable in Python; however, they are explicitly **NOT** converted to a list when assigned to a list variable to prevent mistakes.
 
-### 5.1.4.2 Accessing List Variables
+### 5.1.3.1 Accessing List Variables
 
 ::::lo[Learning Objectives]
 
@@ -343,13 +343,13 @@ This is particularly needed when using FOR-Loops. See [5.2.4 FOR Loops](chapter-
 
 
 
-## 5.1.5 Dict-Like
+## 5.1.4 Dict-Like
 
 As explained in the `*** Variables ***` section under [3.2.2.4 Dictionary Variable Definition](chapter-03/02_variables.md#3224-dictionary-variable-definition), Robot Framework natively supports creating dictionaries.
 However, the ampersand-syntax `&{var}` has different meanings when assigning values and when accessing values.
 
 
-### 5.1.5.1 Assigning Dictionary Variables
+### 5.1.4.1 Assigning Dictionary Variables
 
 ::::lo[Learning Objectives]
 
@@ -375,7 +375,7 @@ Test Dictionary Variables
 In the following example, the first assignment to `&{participant}` causes an automatic conversion to a Robot Framework Dictionary, also known as DotDict. These special dictionary types can be accessed using dot-access like `${participant.name}` or `${participant.age}`, instead of the usual dictionary access like `${trainer}[name]` or `${trainer}[age]`.
 
 
-### 5.1.5.2 Accessing Dictionary Variables
+### 5.1.4.2 Accessing Dictionary Variables
 
 ::::lo[Learning Objectives]
 
@@ -417,7 +417,7 @@ The dictionary keys act as the argument names and the values as the argument val
 
 
 
-## 5.1.6 Built-In Variables
+## 5.1.5 Built-In Variables
 
 ::::lo[Learning Objectives]