Format some Markdown. RELNOTES=n/a PiperOrigin-RevId: 984055579
Copyediting. RELNOTES=n/a PiperOrigin-RevId: 374196677
Internal change RELNOTES=n/a PiperOrigin-RevId: 342889196
Touch freshness and fix typography. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=275846801
Replace http://errorprone.info with https://errorprone.info since that site serves from https now ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=195671646
Fix links in Refactorings doc. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=190859227
Document refactorings for Guava externally. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=190854535