feat: interactive graph of elastic-subnet rewards params (#1806)

* chore: create `elastic-parameters-graph.md`

* feat: embed `iframe` with Desmos graph

Signed-off-by: Arran Schlosberg <519948+ARR4N@users.noreply.github.com>

* feat: interactive graph of elastic-subnet rewards params

* chore: keep `vale` happy

---------

Signed-off-by: Arran Schlosberg <519948+ARR4N@users.noreply.github.com>
Co-authored-by: Lavinia Talpas <den_lavi@yahoo.com>
Co-authored-by: Meaghan FitzGerald <meag.fitz@avalabs.org>

docs/build/subnet/elastic/elastic-parameters.md

@@ -308,3 +308,18 @@ parameters on Mainnet:
 - `MaxValidatorWeightFactor = 5`. This is a platformVM parameter rather than a
   genesis one, so it's shared across networks.
 - `UptimeRequirement = 0.8`, that is `80%`.
+
+### Interactive Graph
+
+The graph below demonstrates the reward as a function of the length of time
+staked. The x-axis depicts $\frac{StakingPeriod}{MintingPeriod}$ as a percentage
+while the y-axis depicts $Reward$ as a percentage of $MaximumSupply - Supply$,
+the amount of tokens left to be emitted.
+
+Graph variables correspond to those defined above:
+
+- `h` (high) = $MaxConsumptionRate$
+- `l` (low) = $MinConsumptionRate$
+- `s` = $\frac{Stake}{Supply}$
+
+<iframe src="https://www.desmos.com/calculator/uqtank2gcn" width="100%" height="400px"></iframe>