Support .svg upload (github#24459)

Author: dipree

content/github/writing-on-github/working-with-advanced-formatting/attaching-files.md

@@ -43,6 +43,9 @@ We support these files:
 * PNG (*.png*)
 * GIF (*.gif*)
 * JPEG (*.jpg*)
+{%- if svg-support %}
+* SVG (*.svg*)
+{%- endif %}
 * Log files (*.log*)
 * Microsoft Word (*.docx*), Powerpoint (*.pptx*), and Excel (*.xlsx*) documents
 * Text files (*.txt*)

data/features/svg-support.yml

@@ -0,0 +1,5 @@
+# Releases issue #1951
+# Support upload of SVG files
+versions:
+  fpt: '*'
+  ghec: '*'