[librsvg/hospitality] tests/README.md: Fix typo

[Federico Mena Quintero <federico src gnome org>]

commit af48702d5787ddbc20d30c12f72fc0c3cc816de1
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Jan 12 11:15:24 2018 -0600

    tests/README.md: Fix typo

 tests/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/tests/README.md b/tests/README.md
index 62dcf12..49850ff 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -183,7 +183,7 @@ around the whole viewport, defined like this:
 <rect id="test-frame" x="1" y="1" width="478" height="358" fill="none" stroke="#000000"/>
 ```
 
-This specifies no stroke with, so it uses 1 by default.  The desired
+This specifies no stroke width, so it uses 1 by default.  The desired
 effect is "stroke this rectangle with a 1-pixel wide line".
 
 However, notice that the (x, y) coordinates of the rect are (1, 1).