Some changes to the swift-evolution site are to maintain consistency in how header fields are represented in raw text. (using '*' instead of '-' for a bulleted list:
c8dbf85741736e07a2b0ad2662de0a7066cec93c
b36c56879267688ac8a81185dee2599e3c3a1fda
It would probably make sense to incorporate this kind of validation into the CI validation check for proposals.