[patch] Update contributors

Thanks for first-time contributions from @eigenform and @rwy7.

Signed-off-by: Schuyler Eldridge <[email protected]>

spec.md

@@ -143,6 +143,7 @@ contributors is below:
 - [`@debs-sifive`](https://github.com/debs-sifive)
 - [`@donggyukim`](https://github.com/donggyukim)
 - [`@dtzSiFive`](https://github.com/dtzSiFive)
+- [`@eigenform`](https://github.com/eigenform)
 - [`@ekiwi`](https://github.com/ekiwi)
 - [`@ekiwi-sifive`](https://github.com/ekiwi-sifive)
 - [`@felixonmars`](https://github.com/felixonmars)
@@ -153,6 +154,7 @@ contributors is below:
 - [`@mwachs5`](https://github.com/mwachs5)
 - [`@prithayan`](https://github.com/prithayan)
 - [`@richardxia`](https://github.com/richardxia)
+- [`@rwy7`](https://github.com/rwy7)
 - [`@seldridge`](https://github.com/seldridge)
 - [`@sequencer`](https://github.com/sequencer)
 - [`@shunshou`](https://github.com/shunshou)