chore: fix some minor issues in comments

Signed-off-by: tanhuaan <[email protected]>

Author: tanhuaan

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: CI
 
 on: [pull_request, push]
 
-# Cancel a job if there's a new on on the same branch started.
+# Cancel a job if there's a new one on the same branch started.
 # Based on https://stackoverflow.com/questions/58895283/stop-already-running-workflow-job-in-github-actions/67223051#67223051
 concurrency:
   group: ${{ github.ref }}

ec-gpu-gen/src/fft_cpu.rs

@@ -53,7 +53,7 @@ pub fn serial_fft<F: PrimeField>(a: &mut [F], omega: &F, log_n: u32) {
 
 /// Calculate the Fast Fourier Transform on the CPU (multithreaded).
 ///
-/// The result is is written to the input `a`.
+/// The result is written to the input `a`.
 /// The number of threads used will be `2^log_threads`.
 /// There must be more items to process than threads.
 pub fn parallel_fft<F: PrimeField>(