Fix typos in third migration tutorial part #151
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
While continuing with the tutorial, I spotted some typos and other minor
texual issues in the text: these are fixed here.
I've also purged any trailing whitespace. This change was implemented in a separate commit so that it could be ignored if so desired.
If you wish for any changes, please let me know and I'll be happy to update the PR and resubmit.