build_tools/release-notes.sh: fix RST syntax

CHANGELOG.rst

@@ -10,7 +10,7 @@ Deprecations and removed features
   ``~/.config/fish/conf.d/fish_frozen_key_bindings.fish`` files.
   We suggest that you delete those files and :ref:`set your theme <syntax-highlighting>` in ``~/.config/fish/config.fish``.
 
-  - You can still configure fish to propagate theme changes; see :ref:`here <syntax-highlighting-instant-update>` for an example.
+  - You can still configure fish to propagate theme changes instantly; see :ref:`here <syntax-highlighting-instant-update>` for an example.
   - You can still opt into storing color variables in the universal scope
     via ``fish_config theme save`` though unlike ``fish_config theme choose``,
     it does not support dynamic theme switching based on the terminal's color theme (see below).

build_tools/release-notes.sh

@@ -87,7 +87,7 @@ if test -z "$CI" || [ "$(git -C "$workspace_root" tag | wc -l)" -gt 1 ]; then {
     echo 'Download links:'
     echo 'To download the source code for fish, we suggest the file named ``fish-'"$version"'.tar.xz``.'
     echo 'The file downloaded from ``Source code (tar.gz)`` will not build correctly.'
-    echo 'A GPG signature using [this key]('"${FISH_GPG_PUBLIC_KEY_URL:-???}"') is available as ``fish-'"$version"'.tar.xz.asc``.'
+    echo 'A GPG signature using `this key <'"${FISH_GPG_PUBLIC_KEY_URL:-???}"'>`__ is available as ``fish-'"$version"'.tar.xz.asc``.'
     echo
     echo 'The files called ``fish-'"$version"'-linux-*.tar.xz`` contain'
     echo '`standalone fish binaries <https://github.com/fish-shell/fish-shell/?tab=readme-ov-file#building-fish-with-cargo>`__'