Axios can be added to Integrations section of README

### Axios
**I have used this request for a http proxy to access https server**
```
axios.get(
'http://localhost:9200',
{
httpsAgent: new HttpsProxyAgent({
keepAlive: true,
keepAliveMsecs: 1000,
maxSockets: 256,
maxFreeSockets: 256,
proxy: 'http://localhost:8080'
})
}
)
.then(
res => console.log('https response : ',res.data)
)
.catch(
e => console.log('test error : ',e)
)
.finally(
() => console.log('httpbin test completed')

);
```

Open the README and locate the Integrations section. Review the supplied Axios example and existing integration entries, then add Axios in the same format with the relevant usage details. Done means Axios appears correctly in the Integrations section and the README formatting remains consistent.

Written by the indexing model from the issue text.