Janitor: Fix spelling in comments

api/sixtyfps-cpp/include/sixtyfps_interpreter.h

@@ -181,7 +181,7 @@ public:
                 cbindgen_private::sixtyfps_interpreter_struct_iterator_destructor(&inner);
             }
         }
-        // FIXME i believe iterator are supposed to be copy constructible
+        // FIXME I believe iterators are supposed to be copy constructible
         iterator(const iterator &) = delete;
         iterator &operator=(const iterator &) = delete;
         /// Move-constructs a new iterator from \a other.
@@ -244,7 +244,7 @@ private:
 /// Note that models are only represented in one direction: You can create a sixtyfps::Model<Value>
 /// in C++, store it in a std::shared_ptr and construct Value from it. Then you can set it on a
 /// property in your .60 code that was declared to be either an array (`property <[sometype]> foo;`)
-/// or an object literal (`property <{foo: string, bar: int}> myprop;`). Such properties are dynamic
+/// or an object literal (`property <{foo: string, bar: int}> my_prop;`). Such properties are dynamic
 /// and accept models implemented in C++.
 ///
 /// ```

api/sixtyfps-cpp/include/sixtyfps_sharedvector.h

@@ -104,12 +104,12 @@ struct SharedVector
     /// Returns true if there are no elements on this vector; false otherwise.
     bool empty() const { return inner->size == 0; }
 
-    /// This indexing operator returns a reference to the \a index'th element of this vector.
+    /// This indexing operator returns a reference to the \a `index`th element of this vector.
     T &operator[](std::size_t index) { return begin()[index]; }
-    /// This indexing operator returns a const reference to the \a index'th element of this vector.
+    /// This indexing operator returns a const reference to the \a `index`th element of this vector.
     const T &operator[](std::size_t index) const { return begin()[index]; }
 
-    /// Returns a reference to the \a index'th element of this vector.
+    /// Returns a reference to the \a `index`th element of this vector.
     const T &at(std::size_t index) const { return begin()[index]; }
 
     /// Appends the \a value as a new element to the end of this vector.