docs: fixed some typos, formatting, grammar (#11540)

# Which Problems Are Solved

- Typos
- Punctuation
- Markdown table formatting
- ...

(A bunch of issues my editor gave)

# How the Problems Are Solved


# Additional Changes


# Additional Context

internal/execution/worker.go

@@ -25,7 +25,7 @@ type Worker struct {
 }
 
 // Timeout implements the Timeout-function of [river.Worker].
-// Maximum time a job can run before the context gets cancelled.
+// Maximum time a job can run before the context gets canceled.
 // The time can be shorter than the sum of target timeouts, this is expected behavior to not block the request indefinitely.
 func (w *Worker) Timeout(*river.Job[*exec_repo.Request]) time.Duration {
 	return w.config.TransactionDuration