Remove misleading link from "Don't over-optimize" section

README.md

@@ -977,10 +977,10 @@ function combine(val1, val2) {
 ### Don't over-optimize
 
 Modern browsers do a lot of optimization under-the-hood at runtime. A lot of
-times, if you are optimizing then you are just wasting your time. [There are good
-resources](https://github.com/petkaantonov/bluebird/wiki/Optimization-killers)
-for seeing where optimization is lacking. Target those in the meantime, until
-they are fixed if they can be.
+times, if you are optimizing then you are just wasting your time. Focus on writing
+clear and readable code first, and optimize only when you have identified real
+performance issues.
+
 
 **Bad:**
 
@@ -2047,17 +2047,16 @@ try {
 For the same reason you shouldn't ignore caught errors
 from `try/catch`.
 
-**Bad:**
 
-```javascript
+**Good:**
 getdata()
-  .then(data => {
-    functionThatMightThrow(data);
+  .then(user => {
+    return getOrders(user.id);
   })
   .catch(error => {
-    console.log(error);
+    console.error(error);
   });
-```
+
 
 **Good:**