Add the stochastic rounding codec to the docs

Author: juntyr

docs/index.md

@@ -27,6 +27,7 @@ The following Python packages, all published independently on PyPi, use [`numcod
 - [`numcodecs_wasm_reinterpret`][numcodecs_wasm_reinterpret]: binary reinterpret codec
 - [`numcodecs_wasm_round`][numcodecs_wasm_round]: rounding codec
 - [`numcodecs_wasm_sperr`][numcodecs_wasm_sperr]: SPERR codec
+- [`numcodecs_wasm_stochastic_rounding`][numcodecs_wasm_stochastic_rounding]: stochastic rounding codec
 - [`numcodecs_wasm_swizzle_reshape`][numcodecs_wasm_swizzle_reshape]: array axis swizzle and reshape codec
 - [`numcodecs_wasm_sz3`][numcodecs_wasm_sz3]: SZ3 codec
 - [`numcodecs_wasm_tthresh`][numcodecs_wasm_tthresh]: Tthresh codec

docs/requirements.txt

@@ -11,6 +11,7 @@ numcodecs_wasm_random_projection
 numcodecs_wasm_reinterpret
 numcodecs_wasm_round
 numcodecs_wasm_sperr
+numcodecs_wasm_stochastic_rounding
 numcodecs_wasm_swizzle_reshape
 numcodecs_wasm_sz3
 numcodecs_wasm_tthresh