Add CRE8R & COMFI as collateral currency (#472)

* Update collateral-currency-template.md

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* Update Add CRE8R & COMFI As Collateral Currency

* Update Add CRE8R & COMFI As Collateral Currency

* Update and rename Add CRE8R & COMFI As Collateral Currency to Add CRE8R & COMFI As Collateral Currency.md

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UMIPs/Add CRE8R & COMFI As Collateral Currency.md

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+-   **UMIP title:** Add CRE8R and COMFI as collateral currency
+-   **Author:**  Geoff ([email protected])
+-   **Status:** Draft
+-   **Created:**  19 January 2022
+
+## Summary (2-5 sentences)
+
+This UMIP proposes adding CRE8R and COMFI for use as collateral in UMA contracts.
+
+## Motivation
+
+The addition of this collateral currency offers additional functionality to the UMA protocol and increases the range of contracts that can be built.
+
+## Technical Specification
+
+To accomplish this upgrade, the following changes need to be made:
+
+## Ethereum Mainnet
+
+-   The CRE8R address https://etherscan.io/token/0xaa61d5dec73971cd4a026ef2820bb87b4a4ed8d6 needs to be added to the collateral currency whitelist introduced in UMIP-8.
+-   A final fee of 5,280 CRE8R needs to be added in the Store contract.
+
+-   The COMFI address https://etherscan.io/token/0x752efadc0a7e05ad1bcccda22c141d01a75ef1e4 needs to be added to the collateral currency whitelist introduced in UMIP-8.
+-   A final fee of 1,430 COMFI needs to be added in the Store contract.
+
+## Polygon
+
+-  The COMFI address https://polygonscan.com/token/0x72bba3aa59a1ccb1591d7cddb714d8e4d5597e96 needs to be added to the collateral currency whitelist introduced in UMIP-8.
+-  A final fee of 1,430 COMFI needs to be added in the Store contract.
+
+## Rationale
+
+This store fee was chosen as it is approximately equivalent to $1500 in line with other collateral currencies as determined by querying CoinGecko.
+
+## Implementation
+
+
+This change has no implementations other than the aforementioned governor transactions
+
+## Security considerations
+
+Adding a collateral currency introduces a level of risk into the UMA Ecosystem.  This collateral type should be monitored to ensure that the proposed collateral continues to have value.
+
+Contract deployers considering using this collateral in an UMA contract should refer to the [guidelines on collateral type usage](https://docs.umaproject.org/uma-tokenholders/guidence-on-collateral-currency-addition) to ensure appropriate use.
+

collateral-currency-template.md

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 Contract deployers considering using this collateral in an UMA contract should refer to the [guidelines on collateral type usage](https://docs.umaproject.org/uma-tokenholders/guidence-on-collateral-currency-addition) to ensure appropriate use.
 
-