The temperature of any object in space is the equilibrium of incomming energy and outgoing energy. In the case of light it's the equilibrium between the energy which is absorbed and the energy which is radiated. One can assume a lambertian surface https://en.wikipedia.org/wiki/Lambertian ...

I found the effective temperature of exoplanets in SE is nice, but I am not able to compute exoplanets' effective temperature by myself. So who can tell me how to compute it or how SE compute the effective temperature of an exoplanet?

TOI-700 d
I only fixed TOI-700 d.

Gliese 667 C c
I changed Gliese 667 C c into a Terrestrial Planet.

K2-72
I fixed K2-72 c & e.

Earth goes around Jupiter
I put Jupiter on Earth's orbit (1 AU) and put Earth on a lunar orbit around Jupiter, and I fix 4 Galilean moons because the risen temperature.

Terraformed Mars
I added some water and fix the atmospheric pressure & temperature to create a terraformed Mars, but I don't know how to add green life on the planet .

Kepler-62
I added water and fix Kepler-62 e & f.

Kepler-186 f
Kepler-186 f is a cold arid aquaria planet, so I changed it into a marine terra planet. 

Proxima Centauri
I use the old version (Oceanic Aquaria) of Proxima Cen d and I think Proxima Cen b is a Habitable Terrestrial Planet.
In my opinion, Proxima Cen c is a Gas Giant.

Will you ever upload these addons onto the Steam Workshop website?

Uploading addons onto the Steam Workshop should use the Launch Pad, but it seems that the Launch Pad doesn't work for me . 

Gliese 832 c
Gliese 832 c is a Super Earth, it may be a habitable planet.