Removed @-symbols from changelog

The changelog doesn't use the @-syntax for linking Github users. Removed
@-symbols in front of user names to stay consistent with previous
developer mentions.

Also rephrased the description of allow scrolling through settings-
tooltips.

resources/texts/change_log.txt

@@ -17,11 +17,11 @@ When viewing the buildplate from below, there's now shadow visible anymore. As t
 * Show the familiar striped pattern for objects outside of the build-volume in Preview mode as well.
 Models outside of the build-volume can of course not be sliced. In the Prepare mode, this was already visible with solid objects indicated in the familiar grey-yellow striped pattern. Now you can also see the objects that are still in the scene just outside if the build-volume in Preview mode.
 
-* Iron the top-most bottom layer when spiralizing a solid model, contributed by @smartavionics
+* Iron the top-most bottom layer when spiralizing a solid model, contributed by smartavionics
 Ironing was only used for top-layers, or every layer. But what is the biggest flat surface in a vase? This helpful pull request made it so that, in this case, the top-most bottom layer is used to iron on.
 
 * Allow scrolling through setting-tooltips, useful for some plugins.
-Certain plugins, mainly the very useful Settings Guide one, occasionally have very large tooltips. This update allows you to scroll through those.
+Certain plugins, such as the very useful Settings Guide, occasionally have very large tooltips. This update allows you to scroll through those.
 
 * Bug Fixes
 - Fix the simplify algorithm. Again.
@@ -32,25 +32,25 @@ Certain plugins, mainly the very useful Settings Guide one, occasionally have ve
 - Fix cases of tree-support resting against vertical wall.
 - Fix conical support missing on printers with 'origin at center' set.
 - Fix infill multiplier and connected lines settings not cooperating with each other.
-- Fixed an issue with skin-edge support, contributed by @smartavionics
+- Fixed an issue with skin-edge support, contributed by smartavionics
 - Fix printer renaming didn't always stick after restart.
 - Fix move after retraction not changing speed if it's a factor 60 greater.
 - Fix Windows file alteration detection (reload file popup message appears again).
 - OBJ-file reader now doesn't get confused by legal negative indices.
 - Fix off-by-one error that could cause horizontal faces to shift one layer upwards.
-- Fix out of bounds array and lost checks for segments ended with mesh vertices, contributed bt @skarasov
-- Remove redundant 'successful responses' variable, contributed by @aerotog
+- Fix out of bounds array and lost checks for segments ended with mesh vertices, contributed bt skarasov
+- Remove redundant 'successful responses' variable, contributed by aerotog
 
 * Printer definitions and profiles
-- Artillery Sidewinder X1, Artillery Sidewinder Genius, contributed by @cataclism
-- AnyCubic Kossel, contributed by @FoxExe
-- BIQU B1, contributed by @looxonline
-- BLV mgn Cube 300, contributed by @wolfgangmauer
-- Cocoon Create, Cocoon Create Touch, contributed by @thushan
-- Creality CR-6 SE, contributed by @MatthieuMH
-- Flying Bear Ghost 5, contributed by @oducceu
-- Fused Form 3D (FF300, FF600, FF600+, FFmini), contributed by @FusedForm
-- Add Acetate profiles for Strateo3D, contributed by @KOUBeMT
+- Artillery Sidewinder X1, Artillery Sidewinder Genius, contributed by cataclism
+- AnyCubic Kossel, contributed by FoxExe
+- BIQU B1, contributed by looxonline
+- BLV mgn Cube 300, contributed by wolfgangmauer
+- Cocoon Create, Cocoon Create Touch, contributed by thushan
+- Creality CR-6 SE, contributed by MatthieuMH
+- Flying Bear Ghost 5, contributed by oducceu
+- Fused Form 3D (FF300, FF600, FF600+, FFmini), contributed by FusedForm
+- Add Acetate profiles for Strateo3D, contributed by KOUBeMT
 
 [4.7.1]
 For an overview of the new features in Cura 4.7, please see this video: <a href="https://www.youtube.com/watch?v=vuKuil0dJqE">Change log overview</a>