Improve a NEWS fragment (#7389)

pradyunsg · web-flow · commit a25bdab31adb · 2019-11-21T12:01:47.000+05:30
diff --git a/news/7197.doc b/news/7197.doc
@@ -1 +1 @@
-Explain to to get source code in getting started
+Explain how to get pip's source code in `Getting Started <https://pip.pypa.io/en/stable/development/getting-started/>`_

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-Explain to to get source code in getting started`
	`1`	+Explain how to get pip's source code in `Getting Started <https://pip.pypa.io/en/stable/development/getting-started/>`_