Documentation bug: mxnet.symbol.linspace doesn't accept `ctx` as parameter

Description

This is a documentation bug. In the document of mxnet.symbol.linspace, the Parameter section specified an input parameter ctx, which is not in the function signature, and not accepted by the function.

Link to the document: https://mxnet.apache.org/versions/1.6/api/python/docs/api/symbol/symbol.html#mxnet.symbol.linspace

Error Message

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TypeError: linspace() got an unexpected keyword argument 'ctx'

To Reproduce

(If you developed your own code, please provide a short script that reproduces the error. For existing examples, please provide link.)

import mxnet
mxnet.symbol.linspace(1,10,2, ctx=mx.cpu())

Environment

We recommend using our script for collecting the diagnositc information. Run the following command and paste the outputs below:

curl --retry 10 -s https://raw.githubusercontent.com/dmlc/gluon-nlp/master/tools/diagnose.py | python

# paste outputs here

OS: ubuntu 18.04 Python: 3.7.6 pip: 20.0.2 numpy: 1.18.5 mxnet: 1.6.0