fix typo

1. Comments and Documentation.md

@@ -42,5 +42,3 @@ Methods that have code that is not accessible at dev-time, or perform a complex
 - Incomes
 - Outcomes
 - Side Effects
-
-

2. Classes and Interfaces.md

@@ -240,7 +240,3 @@ public class Student
 
 var student = new Student (name: "Elbek", id: Guid.NewGuid());
 ```
-
-
-
-

4. Methods.md

@@ -1,7 +1,7 @@
 ## 1 Methods
 
 ### 1.0 Naming
-Method names should be a summary of what the method is doing, it needs to stay percise and short and representative of the operation with respect to synchrony.
+Method names should be a summary of what the method is doing, it needs to stay precise and short and representative of the operation with respect to synchrony.
 
 #### 1.0.0 Verbs
 Method names must contain verbs in them to represent the action it performs.
@@ -276,7 +276,7 @@ public async ValueTask<List<Student>> GetStudentsAsync()
 A method declaration should not be longer than 120 characters.
 ##### Do
 ```cs
-public async ValueTask<List<Student>> GetAllRegisteredWashgintonSchoolsStudentsAsync(
+public async ValueTask<List<Student>> GetAllRegisteredWashingtonSchoolsStudentsAsync(
 	StudentsQuery studentsQuery)
 {
 	...
@@ -285,7 +285,7 @@ public async ValueTask<List<Student>> GetAllRegisteredWashgintonSchoolsStudentsA
 
 ##### Don't
 ```cs
-public async ValueTask<List<Student>> GetAllRegisteredWashgintonSchoolsStudentsAsync(StudentsQuery studentsQuery)
+public async ValueTask<List<Student>> GetAllRegisteredWashingtonSchoolsStudentsAsync(StudentsQuery studentsQuery)
 {
 	...
 }

5. Variables.md

@@ -56,7 +56,7 @@ var studentObj = new Student();
 <br />
 
 #### 0.0.3 Nulls or Defaults
-If a variable value is it's default such as ```0``` for ```int``` or ```null``` for strings and you are not planning on changing that value (for testing purposes for instance) then the name should identify that value. 
+If a variable value is it's default such as ```0``` for ```int``` or ```null``` for strings and you are not planning on changing that value (for testing purposes for instance) then the name should identify that value.
 ##### Do
 ```cs
 Student noStudent = null;
@@ -116,7 +116,7 @@ var student = new
 
 #### 0.1.3 Single-Property Types
 
-Assign properties directly if you are declaring a type with one property. 
+Assign properties directly if you are declaring a type with one property.
 
 #### Do