Fix docs for querying schema

[mangalaman93]

Fixes #111

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This change is 

[prashant-shahi]

A couple of comments to be addressed and

Reviewable status: 0 of 1 files reviewed, 2 unresolved discussions (waiting on @danielmai, @mangalaman93, and @prashant-shahi)

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README.md, line 195 at r1 (raw file):

When running a schema query for name predicate, the schema response is found in the Json field of the api.Response, as shown below:

We should let users know that the schema query is for the name predicate because if they don't have one, they will be getting an empty response.

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README.md, line 210 at r1 (raw file):

res, err := txn.Query(ctx, q)
fmt.Println(res.Json)

fmt.Printf("%s\n", res.Json)

It will print []uint8 otherwise.

[danielmai]

Address comments from @prashant-shahi and then .

Reviewable status: 0 of 1 files reviewed, 2 unresolved discussions (waiting on @danielmai, @mangalaman93, and @prashant-shahi)

[danielmai]

Reviewable status: 0 of 1 files reviewed, 2 unresolved discussions (waiting on @danielmai, @mangalaman93, and @prashant-shahi)

[prashant-shahi]

Reviewable status: 0 of 1 files reviewed, 3 unresolved discussions (waiting on @mangalaman93 and @prashant-shahi)

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README.md, line 209 at r1 (raw file):

}`

res, err := txn.Query(ctx, q)

if err != nil {
    log.Fatal(err)
}

we should handle the error since the err variable is already initialized here.

[mangalaman93]

Reviewable status: 0 of 1 files reviewed, 3 unresolved discussions (waiting on @prashant-shahi)

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README.md, line 195 at r1 (raw file):

Previously, prashant-shahi (Prashant Shahi) wrote…

When running a schema query for name predicate, the schema response is found in the Json field of the api.Response, as shown below:

We should let users know that the schema query is for the name predicate because if they don't have one, they will be getting an empty response.

Done.

---

README.md, line 209 at r1 (raw file):

Previously, prashant-shahi (Prashant Shahi) wrote…

if err != nil {
    log.Fatal(err)
}

we should handle the error since the err variable is already initialized here.

Done.

---

README.md, line 210 at r1 (raw file):

Previously, prashant-shahi (Prashant Shahi) wrote…

fmt.Printf("%s\n", res.Json)

It will print []uint8 otherwise.

Done. Good catch.