Merge pull request #108 from tp2750/juliaphysics_2025-07-13

Add JuliaPhysics as index page on physics

Author: KronosTheLate

docs/comparisons/physics/index.md

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+title = "JuliaPhysics Organization"
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+
+# JuliaPhysics Organization
+@@badge ![JuliaPhysics](https://avatars.githubusercontent.com/u/29034810?s=100&v=4) @@ 
+There is a [JuliaPhysics](https://github.com/JuliaPhysics) organization that hosts a number of physics related packages.
+
+This includes:
+
+* [Measurements.jl](https://github.com/JuliaPhysics/Measurements.jl). Error propagation calculator and library for physical measurements.
+* [PhysicalConstants.jl](https://github.com/JuliaPhysics/PhysicalConstants.jl). Collection of fundamental physical constants with uncertainties. 
+* [PeriodicTable.jl](https://github.com/JuliaPhysics/PeriodicTable.jl). Periodic Table for Julians! 🔥
+* [PhysicsTutorials.jl](https://github.com/JuliaPhysics/PhysicsTutorials.jl). A collection of physics tutorials for the Julia programming language.