Spring Boot怎么当一个词切出来?

已经看过 https://github.com/fxsjy/jieba/issues/14 ，
尝试过

1. 加入词典
```
Spring Boot 500000 nz
```
2. 使用 `suggest_freq`
```
jieba.suggest_freq(('Spring Boot'), True)

content = "小明的工作是从事大数据和Spring Boot开发"
words = pseg.cut(content)
```

结果都是Spring和Boot分开，请问要怎么做才能当成专有名词?