missing comma

Author: Vaibhavdixit02

docs/pages.jl

@@ -33,7 +33,7 @@ pages = ["index.md",
         "Metaheuristics.jl" => "optimization_packages/metaheuristics.md",
         "MultistartOptimization.jl" => "optimization_packages/multistartoptimization.md",
         "NLopt.jl" => "optimization_packages/nlopt.md",
-        "NLPModels.jl" => "optimization_packages/nlpmodels.md"
+        "NLPModels.jl" => "optimization_packages/nlpmodels.md",
         "NOMAD.jl" => "optimization_packages/nomad.md",
         "Optim.jl" => "optimization_packages/optim.md",
         "Optimisers.jl" => "optimization_packages/optimisers.md",