* add mandatory "security considerations" to EIP-1 and template EIP-x
* security considerations: clarify wording and process
* security considerations: update eip-1
* Add updated date to EIP-1
Co-authored-by: Alex Beregszaszi <alex@rtfs.hu>
* EIP-1: make category field in EIP more clear
* Better heading in README
* EIP-2: fix typo in rendering
* EIP-1: clarify that an EIP can move from the Abandoned status to the Draft status
Also clarify that EIPs cannot move from the Rejected and Superseded states.
* EIP-1: rename WIP status to Idea
* EIP-1: change template formatting to fix markdown rendering
With angle brackets markdown renders them as HTML tags sometimes (depending on the rendering engine).
* EIP-1812: change copyright link to the correct CC0 link