[release-notes] Typo fixes (consistenty, improveed, prexisting)

[Link Dupont <link src gnome org>]

commit a2acaf788c8198ed7bfbe6fd67d762067bcac525
Author: Anders Jonsson <anders jonsson norsjovallen se>
Date:   Fri Sep 10 21:42:27 2021 +0200

    Typo fixes (consistenty, improveed, prexisting)

 help/C/developers.page | 4 ++--
 help/C/index.page      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/help/C/developers.page b/help/C/developers.page
index ae764533..9b50cf5b 100644
--- a/help/C/developers.page
+++ b/help/C/developers.page
@@ -124,7 +124,7 @@
     more discoverable, and has a new search UI, which makes it easy to browse
     results across a project.</p>
     
-    <p><app>Builder</app>'s prexisting support for deploying to connected
+    <p><app>Builder</app>'s preexisting support for deploying to connected
     devices has been improved for GNOME 41. This allows building and then
     deploying Flatpak bundles to connected devices, such as mobile devices. It
     now works much more automatically; to learn how to use it, see
@@ -157,7 +157,7 @@
       <item><p>GTK Inspector is now enabled by default, to make debugging
       easier.</p></item>
       <item><p>There have been various improvements to GTK 4 on Windows, such 
-      as using GL for media playback and improveed drag and drop support.
+      as using GL for media playback and improved drag and drop support.
       </p></item>
       <item><p>Emoji data has been updated to CLDR 39.</p></item>
     </list>
diff --git a/help/C/index.page b/help/C/index.page
index 4c680000..b2e623c7 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -177,7 +177,7 @@ xmlns:e="http://projectmallard.org/experimental/"; type="guide" id="index">
       more noticeable with some displays rather than others (the improvement is
       more significant on displays with lower refresh rates).</p></item>
       <item><p>System-level multitouch gestures now behave more reliably and
-      consistenty.</p></item>
+      consistently.</p></item>
       <item><p>GTK 4 has a new default GL renderer, which provides faster 
       rendering and reduced power consumption.</p></item>
       <item><p>Finally, a major code cleanup has been carried out in Mutter,