docs: minor fixes

Author: Rel1cx

website/pages/docs/rules/no-unstable-context-value.md

@@ -41,8 +41,8 @@ const MyContext = React.createContext({});
 function MyComponentProvider() {
   return (
     <MyContext.Provider value={{ foo: "bar" }}>
-      {/*                             ^^^^^^^^^^^^^ */}
-      {/*                             - A/an 'Object literal' passed as the value prop to the context provider should not be constructed. It will change on every render. Consider wrapping it in a useMemo hook */}
+      {/*                      ^^^^^^^^^^^^^^ */}
+      {/*                      - A/an 'Object literal' passed as the value prop to the context provider should not be constructed. It will change on every render. Consider wrapping it in a useMemo hook */}
       <ExampleConsumer />
     </MyContext.Provider>
   );