[libsoup] docs: add SOUP_VERSION_2_90 symbol to sections.txt

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 6d8796513d9f0a602bc54abe49599141228f0600
Author: Carlos Garcia Campos <cgarcia igalia com>
Date:   Thu Jan 7 15:23:40 2021 +0100

    docs: add SOUP_VERSION_2_90 symbol to sections.txt

 docs/reference/libsoup-3.0-sections.txt | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/docs/reference/libsoup-3.0-sections.txt b/docs/reference/libsoup-3.0-sections.txt
index 61a72f73..f30e506d 100644
--- a/docs/reference/libsoup-3.0-sections.txt
+++ b/docs/reference/libsoup-3.0-sections.txt
@@ -796,6 +796,7 @@ SOUP_CHECK_VERSION
 <SUBSECTION>
 SOUP_VERSION_MIN_REQUIRED
 SOUP_VERSION_MAX_ALLOWED
+SOUP_VERSION_2_90
 SOUP_VERSION_3_0
 <SUBSECTION Private>
 SOUP_AVAILABLE_IN_ALL