Rollup merge of rust-lang#94128 - mqy:master, r=Dylan-DPC

rustdoc: several minor fixes

``@rustbot`` label A-docs

Author: matthiaskrgr

core/src/ops/generator.rs

@@ -47,7 +47,7 @@ pub enum GeneratorState<Y, R> {
 /// fn main() {
 ///     let mut generator = || {
 ///         yield 1;
-///         return "foo"
+///         "foo"
 ///     };
 ///
 ///     match Pin::new(&mut generator).resume(()) {

core/src/pin.rs

@@ -1100,8 +1100,8 @@ pub macro pin($value:expr $(,)?) {
     //     that would break `Pin`'s invariants.
     //   - `{ $value }` is braced, making it a _block expression_, thus **moving**
     //     the given `$value`, and making it _become an **anonymous** temporary_.
-    //     By virtue of being anonynomous, it can no longer be accessed, thus
-    //     preventing any attemps to `mem::replace` it or `mem::forget` it, _etc._
+    //     By virtue of being anonymous, it can no longer be accessed, thus
+    //     preventing any attempts to `mem::replace` it or `mem::forget` it, _etc._
     //
     // This gives us a `pin!` definition that is sound, and which works, but only
     // in certain scenarios: