chore: fix some typos in comment (#1481)

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

Author: wangcundashang

crates/wasmi/src/engine/mod.rs

@@ -467,7 +467,7 @@ impl ReusableAllocationStack {
 
 /// The engine's stacks for reuse.
 ///
-/// Rquired for efficient concurrent Wasm executions.
+/// Required for efficient concurrent Wasm executions.
 #[derive(Debug)]
 pub struct EngineStacks {
     /// Stacks to be (re)used.

crates/wasmi/src/linker.rs

@@ -475,7 +475,7 @@ impl<T> Linker<T> {
         module: &Module,
     ) -> Result<InstancePre, Error> {
         assert!(Engine::same(self.engine(), context.as_context().engine()));
-        // TODO: possibly add further resource limtation here on number of externals.
+        // TODO: possibly add further resource limitation here on number of externals.
         // Not clear that user can't import the same external lots of times to inflate this.
         let externals = module
             .imports()

crates/wasmi/src/module/init_expr.rs

@@ -21,7 +21,7 @@ use wasmparser::AbstractHeapType;
 #[cfg(feature = "simd")]
 use crate::core::V128;
 
-/// Types that allow evluation given an evaluation context.
+/// Types that allow evaluation given an evaluation context.
 pub trait Eval {
     /// Evaluates `self` given an [`EvalContext`].
     fn eval(&self, ctx: &dyn EvalContext) -> Option<UntypedVal>;

crates/wast/src/lib.rs

@@ -529,7 +529,7 @@ impl WastRunner {
     ///
     /// - If no module instances can be found.
     /// - If no function identified with `func_name` can be found.
-    /// - If function invokation returned an error.
+    /// - If function invocation returned an error.
     ///
     /// [`Func`]: wasmi::Func
     fn invoke(&mut self, invoke: wast::WastInvoke) -> Result<()> {