Typo in 'enhancement'
Fix second half of document (code examples)
Fix many minor formatting issues
Adds templates to pep-1
Add more templates
Add "implementation" a list of branch URLs to metadata.

This is useful to have in metadata to tie the proposal to an
available implementation (or several, if there are options to consider).
Having this in metadata makes it possible to machine generate
information containing these links).
Add alternatives.md template to pep-1
Correct index.md and add instruction for main entry.
Breaks the pep-2.Iteration proposal into separate manageable parts.

This breakdown follows the index/template structure of pep-1.
Merge pull request #1 from ahpook/patch-1

Typo in 'enhancement'
Fix iternation typo
Remove \ in example
Fix (or) being included as numbered element
Update pep-2.Iteration/iteration.md
Change list with or option to bullets
Add template for spinoff
Break out future to spinoff.md for pep-2.Iteration
Update title of index to mention name of pep
Adds heading to more easily find the rationale
Fix Double heading 1