Guild and Koios added

[redoracle]

No description provided.

[katomm]

Thank you for the contribution, there are two minor issues with this pull request:

(1) Koios link is the same as in the developer portal (links to the product). But, it needs to link to the team page of this collaboration https://koios.rest/community.html#teams to be in line with requirements on https://cardano.org/docs/tutorial/add-company/#requirements.

(2) The same applies to Guild Operators, which could link to https://cardano-community.github.io/guild-operators/contributors/, for example. (Not sure if there is a better team page)

[redoracle]

Thank you for the contribution, there are two minor issues with this pull request:

(1) Koios link is the same as in the developer portal (links to the product). But, it needs to link to the team page of this collaboration https://koios.rest/community.html#teams to be in line with requirements on https://cardano.org/docs/tutorial/add-company/#requirements.

(2) The same applies to Guild Operators, which could link to https://cardano-community.github.io/guild-operators/contributors/, for example. (Not sure if there is a better team page)

My bad. Thanks Tommy.