Update v0.6.0.md

Removes PR's I made that were either already mentioned or which had
trivial changes not worth mentioning.

releases/v0.6.0.md

@@ -137,17 +137,13 @@ Remove those already mentioned above (or so small they don't need to be):
 * Fix types for `setAll()` by @lloydk in https://github.com/color-js/color.js/pull/520
 * [types] Update `Coords` type to allow `null` by @MysteryBlokHed in https://github.com/color-js/color.js/pull/530
 * Ensure Okhsl and Okhsv return undefined hues for achromatic colors by @facelessuser in https://github.com/color-js/color.js/pull/517
-* [website] Add Discord link to nav links by @MysteryBlokHed in https://github.com/color-js/color.js/pull/533
 * `deltas()` function, closes #437 by @LeaVerou in https://github.com/color-js/color.js/pull/532
-* Update download count in README.md by @MysteryBlokHed in https://github.com/color-js/color.js/pull/539
-* [types] Migrate to JSDoc by @MysteryBlokHed in https://github.com/color-js/color.js/pull/540
 * Fix toGamut() types by @lloydk in https://github.com/color-js/color.js/pull/544
 * Fix RGBColorSpace type tests by @lloydk in https://github.com/color-js/color.js/pull/543
 * Add type for keywords by @lloydk in https://github.com/color-js/color.js/pull/545
 * Fix getAll() types by @lloydk in https://github.com/color-js/color.js/pull/546
 * [getAll] Support precision, closes #542 by @DmitrySharabin in https://github.com/color-js/color.js/pull/548
 * Fix serialization of negative percentages by @lloydk in https://github.com/color-js/color.js/pull/554
-* [types] Re-export types for `index` and `index-fn` by @MysteryBlokHed in https://github.com/color-js/color.js/pull/555
 * [types] Generate declarations from JS by @MysteryBlokHed in https://github.com/color-js/color.js/pull/564
 * Update README.md by @sroucheray in https://github.com/color-js/color.js/pull/570
 * [types] Remove module augmentation (v0.6) by @MysteryBlokHed in https://github.com/color-js/color.js/pull/567