Merge pull request 'Update relnotes with PR #393' (#394) from jahway603 into dev

Reviewed-on: #394

doc/relnotes/README.md

@@ -36,6 +36,7 @@ evil organizations.
   * Remove unused Makefile: https://git.hush.is/hush/hush3/issues/291
   * Add script for scanning DragonX nodes: https://git.hush.is/hush/hush3/commit/0679468f609215a0958a95edc70643108ee6530a
   * Add Fedora install process: https://git.hush.is/hush/hush3/pulls/384
+  * Add Arch install process: https://git.hush.is/hush/hush3/pulls/393
   * More details about p2p encryption: https://git.hush.is/hush/hush3/commit/ccc86839b9774934882fec4cbf3428003cf75fd5, https://git.hush.is/hush/hush3/commit/a358acab0b1a589cebc45846ab54f7fa751c4820, https://git.hush.is/hush/hush3/commit/4ed576a7e256abb46e15d8f3606dc30ac276d461
   * Fix boost download link: https://git.hush.is/hush/hush3/commit/323d2134a1fcc119a4da82f9fc37e912b67e58c6
   * Remove unused code