a note when using docker locally-526互联

when building the getting-started application provided by official site, I got a error saying,
```
#0 138.4 node-pre-gyp ERR! install request to https://github.com/TryGhost/node-sqlite3/releases/download/v5.1.2/napi-v6-linux-musl-x64.tar.gz failed, reason: socket hang up 
```
it's normal in China that downloading files from github, so I changed the hosts file as below to acceralte the downloading.
- get ip for fastly.net
- get cdn for github
- modify hosts
```
# github
151.101.1.194 github.global.ssl.fastly.net
140.82.114.3 github.com
```