docs(typos): Run codespell to fix typos (#3980)

* docs(typos): Run codespell to fix typos

There were a lot of typos through the repository, so I ran
[codespell][], a tool for automatically fixing typos, to fix them.

```console
make codespell
```

There's already a tool called [misspell][] that's supposed to take care
of this, but misspell hasn't been updated for 6 years, and it doesn't
seem to be catching any of the typos that codespell can.

[codespell]: https://github.com/codespell-project/codespell
[misspell]: https://github.com/client9/misspell

* Revert and ignore spelling for Consequentially

* Add GH workflow for codespell

* Revert GH Workflow and Makefile for codespell

Per @pellared, since there's no instructions for setting up codespell,
it was suggested that the changes for setting up a workflow and section
in Makefile include instructions for setting up codespell as well.

* Revert spelling on consequently

---------

Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

exporters/stdout/stdouttrace/trace.go

@@ -93,7 +93,7 @@ func (e *Exporter) ExportSpans(ctx context.Context, spans []trace.ReadOnlySpan)
 	return nil
 }
 
-// Shutdown is called to stop the exporter, it preforms no action.
+// Shutdown is called to stop the exporter, it performs no action.
 func (e *Exporter) Shutdown(ctx context.Context) error {
 	e.stoppedMu.Lock()
 	e.stopped = true