Fix Code Search link in CONTRIBUTING

2.8M instead of 4 files under MIT license is more like it? ;-)

CONTRIBUTING.md

@@ -21,7 +21,7 @@ Choosealicense.com is intended to demystify license choices, not present or cata
    * [List of OSI approved licenses](https://opensource.org/licenses/alphabetical)
    * [GNU's list of free licenses](https://www.gnu.org/licenses/license-list.en.html) (*note: the license must be listed in one of the three "free" categories*)
    * [Open Definition's list of conformant licenses](https://opendefinition.org/licenses/) (non-code)
-3. The license must be used in at least *1,000* public repositories. This may be documented, for example, with a [GitHub code search](https://github.com/search?q=MIT+filename%3ALICENSE&type=Code).
+3. The license must be used in at least *1,000* public repositories. This may be documented, for example, with a [GitHub code search](https://github.com/search?q=MIT+path%3ALICENSE&type=Code).
 4. 3 notable projects using the license must be identified. These must have straightforward LICENSE files which serve as examples newcomers can follow and that could be detected by [licensee](https://github.com/licensee/licensee) if it knew about the license.
 
 If your proposed license meets the above criteria, here's a few other things to keep in mind as you propose the license's addition: