Merge branch 'Harshil' of https://github.com/HarshilShah1804/C-Plus-Plus into Harshil

Author: HarshilShah1804

DIRECTORY.md

@@ -322,6 +322,7 @@
   * [Addition Rule](https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/probability/addition_rule.cpp)
   * [Bayes Theorem](https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/probability/bayes_theorem.cpp)
   * [Binomial Dist](https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/probability/binomial_dist.cpp)
+  * [Exponential Dist](https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/probability/exponential_dist.cpp)
   * [Geometric Dist](https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/probability/geometric_dist.cpp)
   * [Poisson Dist](https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/probability/poisson_dist.cpp)
   * [Windowed Median](https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/probability/windowed_median.cpp)

probability/exponential_dist.cpp

@@ -1,6 +1,7 @@
 /**
  * @file
  * @brief [Exponential Distribution](https://en.wikipedia.org/wiki/Exponential_distribution)
+ * @brief [Exponential Distribution](https://en.wikipedia.org/wiki/Exponential_distribution)
  * 
  * The exponential distribution is used to model
  * events occuring between a Poisson process like radioactive decay.
@@ -93,3 +94,4 @@ int main(){
     test(); // Self test implementation
     return 0;
 }
+