docs: fix typos (#11393)

Author: TaderMP007

docs/examples-deterministic-wasm-execution.md

@@ -32,7 +32,7 @@ for more details.
 
 The relaxed SIMD proposal gives Wasm programs access to SIMD operations that
 cannot be made to execute both identically and performantly across different
-architectures. The proposal gave up determinism across different achitectures in
+architectures. The proposal gave up determinism across different architectures in
 order to maintain portable performance.
 
 At the cost of worse runtime performance, Wasmtime can deterministically execute

winch/codegen/src/isa/x64/asm.rs

@@ -2022,7 +2022,7 @@ impl Assembler {
         self.emit(Inst::External { inst });
     }
 
-    /// Substract unsigned integers with unsigned saturation.
+    /// Subtract unsigned integers with unsigned saturation.
     pub fn xmm_vpsubus_rrr(&mut self, dst: WritableReg, src1: Reg, src2: Reg, size: OperandSize) {
         let dst: WritableXmm = dst.map(|r| r.into());
         let inst = match size {