Switch diagram from PNG to SVG

ifa-0000.md

@@ -58,7 +58,7 @@ Status
 
 The possible paths for a Draft proposals are as follows:
 
-![](https://cdn.rawgit.com/ifa-wg/proposals/master/ifa-0000/process-diagram.png)
+![](https://cdn.rawgit.com/ifa-wg/proposals/master/ifa-0000/process-diagram.svg)
 
 The arrow diagrams are not absolutes, a Withdrawn or Rejected proposal *can* regain Draft status, but this is very rare.  Statuses that are grey indicate that the proposal will be removed from the list of current proposals.
 
@@ -194,4 +194,4 @@ After PR for a proposal pull has been submitted, an editor does the following:
 * If the proposal isn't ready, the editor will not assign a number nor draft status.  Instead, they should reject the PR but feedback and specific instructions for the author. 
 * If the proposal is ready, ensure that the Draft number is accurate, update the list of current proposals found in the README file, and merge the PR.
 
-Proposal editors are not critics, their job is to facilitate the process through constructive feedback and to perform administrative functions.
+Proposal editors are not critics, their job is to facilitate the process through constructive feedback and to perform administrative functions.