docs: fixes

README.md

@@ -3,8 +3,9 @@ browser support for `process.hrtime()`.
 # Install
 `npm i browser-hrtime`
 # Usage
+## NodeJS
 ```
-const hrtime = require('browser-hrtime');
+const { hrtime } = require('browser-hrtime');
 
 const NS_PER_SEC = 1e9;
 const time = hrtime();
@@ -25,4 +26,20 @@ process.hrtime = require('browser-hrtime');
 const someModule = require('module-that-uses-hrtime');
 ```
 
+## EMS & Typescript
+```
+import hrtime from 'browser-hrtime';
+
+const NS_PER_SEC = 1e9;
+const time = hrtime();
+// [ 1800216, 25 ]
+
+setTimeout(() => {
+  const diff = hrtime(time);
+  // [ 1, 552 ]
+
+  console.log(`Benchmark took ${diff[0] * NS_PER_SEC + diff[1]} nanoseconds`);
+  // Benchmark took 1000000552 nanoseconds
+}, 1000);
+```
 see [NodeJS documenation](https://nodejs.org/api/process.html#process_process_hrtime_time) for more examples