Update documentation wrt. epoch rewards fractions

packages/docs/celo-codebase/protocol/proof-of-stake/carbon-offsetting-fund.md

@@ -2,4 +2,4 @@
 
 The Carbon Offsetting Fund provides for making the infrastructure of the Celo platform carbon-neutral, by making a transfer every epoch to an organization that commits to using those assets off-chain for carbon offsetting projects.
 
-Through the on-chain governance process, Celo Gold holders can set an on-target carbon offset amount, and the address of a carbon offsetting partner to which to direct these transfers. The on-target amount is adjusted by the epoch [rewards mulitplier](epoch-rewards.md), as with all epoch rewards.
+Through the [on-chain governance process](../governance.md), Celo Gold holders can set the fraction of the total desired epoch rewards, initially planned to be 0.5%, that is received by the carbon offsetting fund, and the address of a carbon offsetting partner to which to direct these transfers. The on-target amount is adjusted by the epoch [rewards mulitplier](epoch-rewards.md), as with all epoch rewards.

packages/docs/celo-codebase/protocol/proof-of-stake/community-fund.md

@@ -4,12 +4,12 @@ The Community Fund provides for general upkeep of the Celo platform. Celo Gold h
 
 The Community Fund receives assets from three sources:
 
-- The Community Fund obtains a desired epoch payment defined as a fraction of the total desired epoch rewards \(governable, initially planned to be $$25\%$$\). This amount is subject to adjustment up or down in the event of under- or over-spending against the epoch rewards target schedule. It may also be reduced to [bolster the Reserve](#bolster-reserve).
+- The Community Fund obtains a desired epoch reward defined as a fraction of the total desired epoch rewards \(governable, initially planned to be $$25\%$$\). This amount is subject to adjustment up or down in the event of under- or over-spending against the epoch rewards target schedule. The Community Fund epoch rewards may be redirected to [bolster the Reserve](#bolster-reserve).
 
 - The Community Fund is the default destination for slashed assets.
 
 - The Community Fund also receives the 'base' portion of [transaction fees](../transactions/gas-pricing.md).
 
 ## <a name="bolster-reserve"></a>Bolstering the Reserve
 
-The reserve automatically receives a fraction of the desired epoch payments to the Community Fund during times in which the reserve ratio \(the ratio of reserve value over stablecoin market capitalization\) is below a predefined target schedule. The size of the epoch payment to the reserve is calculated based on a half-life calculation to bring the reserve back to its target level. The reserve ratio target schedule as well as the half-life period \(initially planned to be 10 years\) are governable.
+The rewards to the Community Fund are automatically redirected to the reserve during times in which the reserve ratio \(the ratio of reserve value over stablecoin market capitalization\) is below a cutoff value. This cutoff reduces from two to one over the first of 25 years in a linear fashion and remains at one afterwards.