Update 1.0.0.0 Changelog (haskell#1429) 

Prepare ghcide release 0.7.5 (haskell#1389) * Expose more rule definitions * Update release notes

Prepare ghcide v0.7.4 release (haskell#1328) 

hls-retrie-plugin 0.1.1.0 (haskell#1288) Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> Co-authored-by: Junyoung/Clare Jang <jjc9310@gmail.com>

Splice Plugin 0.3.0.0 - corresponds to HLS 0.9.0 

Bump haddock comments plugin to 0.1.1 (haskell#1292) 

Prepare hls hlint plugin 0.2.0 (haskell#1296) * Bump up version of hls-hlint-plugin to 0.2.0 * Use ghc-exactprint-0.6.3.4 * Update hackage index to get mmorph revision

Prepare ghcide v0.7.3 release (haskell#1289) * Prepare ghcide v0.7.3 release * bump hls-plugin-api minimum bound Co-authored-by: Junyoung/Clare Jang <jjc9310@gmail.com>

Bump up hls-plugin-api to 0.7.0 (haskell#1290) * Bump up hls-plugin-api to 0.7.0 * Bump up hls-plugin-api lower bound

Prepare 0.9.0 (haskell#1271) * Add initial release checklist * Bump up hls version * Add prs running GenChangelogs.hs to ChangeLog * Add description to changelog * Correct checklist entry * Complete list of pr's after rebasing master * Rephrasing mention to contributors * Add mention to haskell#1204 and correct pr's header