lost_emission_cost - documentation

[Holger Teichgraeber]

@YoungFaithful:
In the documentation, is this a typo? should be greater than 1e6. In my previous modeling, I have this value at 700.

https://youngfaithful.github.io/CapacityExpansion.jl/dev/opt_cep/#Running-the-Capacity-Expansion-Problem-1

lost_emission_cost: Dictionary with numbers indicating the emission price/kg-emission (should be greater than 1e6), give Inf for no LE (Lost Emissions - a variable for emissions that will exceed the limit in order to provide the demand with the installed capacities)

[Holger Teichgraeber]

Additionally, how about we add an example similar to "existing" => ["demand","dispatchable_generation"] in infrastructure for lost load and lost emissions here?

[Holger Teichgraeber]

Workflow example confirms the above. Copying this here for reference:
lost_load_cost=Dict{String,Number}("electricity"=>1e6),lost_emission_cost=Dict{String,Number}("CO2"=>700)

[YoungFaithful]

Oh yeah, that is a typo.
I think an additional example is a good idea.

[Holger Teichgraeber]

closed with #38