docs/about.rst: fix broken link for network-and-reliance-topology image.

Signed-off-by: David-Sarah Hopwood <david-sarah@jacaranda.org>

diff --git a/docs/about.rst b/docs/about.rst
index 25726fc816db40bebdd3417de9e3df1cafd3f3c7..d93f9878731e0eb6a4b7d982006507cf98b2dc0a 100644 (file)
--- a/docs/about.rst
+++ b/docs/about.rst
@@ -42,7 +42,7 @@ using cloud storage in the first place—convenience.)
 
 Here's how it works:
 
-.. image:: https://tahoe-lafs.org/~zooko/network-and-reliance-topology.png
+.. image:: network-and-reliance-topology.svg
 
 A "storage grid" is made up of a number of storage servers.  A storage server
 has direct attached storage (typically one or more hard disks).  A "gateway"