Prisma

after updating to prisma 1.20 my post deploy hook isn't running anymore.

Hook:
```
hooks:
  post-deploy:
    - graphql get-schema -p prisma
```

result:
```
post-deploy:
spawnSync graphql ENOENT
Running graphql get-schema -p prisma ×
Generating schema 36ms
```

there seems to be different ways of invoking some of these post deploy commands. unfortunately, a lot of times when you google stuff on Prisma, it returns old documentation vs the most current. For example, my `prisma.yml` file looks like this in regards to code generation and schema copying:

```generate:
  - generator: javascript-client
    output: ../src/generated
  - generator: graphql-schema
    output: ../src/generated```

```hooks:
  post-deploy:
    - prisma generate```

seems to work, but again, not sure if im doing it the “right way”