update documentation

Author: jbytecode

docs/src/assignment.md

@@ -1,12 +1,16 @@
-## Assignment Problem
+## Assignment Problem Solver
+
 ```@docs
 OperationsResearchModels.solve(a::AssignmentProblem)
 ```
 
+## Assignment Problem 
 ```@docs
 OperationsResearchModels.AssignmentProblem
 ```
 
+## Assignment Result
+
 ```@docs
 OperationsResearchModels.AssignmentResult
 ```

docs/src/game.md

@@ -1,4 +1,4 @@
-# Zero-Sum Games
+## Zero-Sum Games
 
 ```@docs 
 OperationsResearchModels.game

docs/src/knapsack.md

@@ -1,5 +1,15 @@
-# The Classical Knapsack Problem
+# The Classical Knapsack Problem Solver
 
 ```@docs
 OperationsResearchModels.solve(p::KnapsackProblem)
-```
+```
+
+
+```@docs 
+OperationsResearchModels.KnapsackProblem
+```
+
+```@docs 
+OperationsResearchModels.KnapsackResult
+```
+

docs/src/scheduling.md

@@ -6,13 +6,13 @@
 OperationsResearchModels.johnsons
 ```
 
-### Genetic Algorithm for the problems that cannot be solved with using Johnson's Rule
+## Genetic Algorithm for the problems that cannot be solved with using Johnson's Rule
 
 ```@docs
 OperationsResearchModels.johnsons_ga
 ```
 
-### Makespan
+## Makespan
 
 ```@docs
 OperationsResearchModels.makespan

src/knapsack.jl

@@ -7,12 +7,44 @@ export KnapsackResult
 
 using JuMP, HiGHS
 
+
+"""
+    KnapsackResult
+
+# Description
+
+A structure to hold the result of the knapsack problem.
+
+# Fields
+
+- `selected`: A vector of booleans indicating which items are selected.
+- `model`: The JuMP model used to solve the problem.
+- `objective`: The objective value of the model.
+"""
 struct KnapsackResult
     selected::Vector{Bool}
     model::JuMP.Model
     objective::Float64
 end 
 
+
+
+"""
+    knapsack(values::Vector{Float64}, weights::Vector{Float64}, capacity::Float64)::KnapsackResult
+
+# Description
+
+Defines the knapsack problem.
+
+# Fields
+
+- `values::Vector{Float64}`: The values of the items.
+- `weights::Vector{Float64}`: The weights of the items.
+- `capacity::Float64`: The maximum capacity of the knapsack.
+
+# Output
+- `KnapsackResult`: The custom data type that holds selected items, model, and objective value.
+"""
 struct KnapsackProblem
     values::Vector{Float64}
     weights::Vector{Float64}