Switch to logo with white outline (#406)

homeworkprod · web-flow · commit 32e4acdaf01d · 2020-06-06T11:34:35.000+03:00
This makes the logo stand out on dark backgrounds, too.
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-[![Returns logo](https://raw.githubusercontent.com/dry-python/brand/master/logo/returns.png)](https://github.com/dry-python/returns)
+[![Returns logo](https://raw.githubusercontent.com/dry-python/brand/master/logo/returns_white-outline.png)](https://github.com/dry-python/returns)
 
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Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-[![Returns logo](https://raw.githubusercontent.com/dry-python/brand/master/logo/returns.png)](https://github.com/dry-python/returns)`
	`1`	`+[![Returns logo](https://raw.githubusercontent.com/dry-python/brand/master/logo/returns_white-outline.png)](https://github.com/dry-python/returns)`
`2`	`2`
`3`	`3`	`-----`
`4`	`4`