Proposing a PR to fix a few small typos

[timgates42]

Issue Type

[x] Bug (Typo)

Steps to Replicate and Expected Behaviour

• Examine rediscluster/client.py, rediscluster/connection.py, tests/test_cluster_node_manager.py and observe specefied, however expect to see specified.
• Examine tests/test_commands.py and observe impelmentation, however expect to see implementation.
• Examine CONTRIBUTING.md, tests/test_commands.py and observe uptream, however expect to see upstream.
• Examine tests/test_cluster_node_manager.py and observe itterate, however expect to see iterate.
• Examine docs/logging.rst and observe reccommended, however expect to see recommended.
• Examine docs/pubsub.rst and observe recieved, however expect to see received.
• Examine tests/test_encoding_cluster.py and observe preffered, however expect to see preferred.
• Examine docs/pubsub.rst and observe posiblity, however expect to see possibility.
• Examine docs/upgrading.rst and observe intervall, however expect to see interval.
• Examine docs/index.rst and observe exmaples, however expect to see examples.
• Examine docs/development.rst and observe documentaion, however expect to see documentation.

Notes

Semi-automated issue generated by https://github.com/timgates42/meticulous/blob/master/docs/NOTE.md

To avoid wasting CI processing resources a branch with the fix has been prepared but a pull request has not yet been created. A pull request fixing the issue can be prepared from the link below, feel free to create it or request @timgates42 create the PR. Alternatively if the fix is undesired please close the issue with a small comment about the reasoning.

https://github.com/timgates42/redis-py-cluster/pull/new/bugfix_typos

Thanks.

[Grokzen]

@timgates42 CI resources are free from TravisCI so just post the PR already

[timgates42]

Thanks @Grokzen have done so