fix list

Author: ProRasel

README.md

@@ -70,7 +70,7 @@
 ***[6.3](Computations/Calculate-Grades.md"Calculate Grades)")** - **[Calculate Grades](Computations/Calculate-Grades.md)**
 
 ***[6.4](Computations/Gravitational-Force.md"Gravitational Force)")** - **[Gravitational Force](Computations/Gravitational-Force.md)**
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 ***[6.5](Computations/Triangle-Area.md"Triangle Area)")** - **[Triangle Area](Computations/Triangle-Area.md)**
 
 
@@ -89,7 +89,6 @@ In this galaxy, we will focus on real-world coding related problem-solving.
 
 The problem-solving means, we will take a small programming problem. We will think about the process of solving the problem and then we will solve it. 
 
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 ### S-3: Explanation
 After the solution, we will explain the answer. Convey the concept and strategy to solve it.