Fix typo in license

Author: johnthagen

LICENSE-3RD-PARTY.txt

@@ -588,7 +588,7 @@ necessary.  Here is a sample; alter the names:
 That's all there is to it!
 
 ------------------------------------------------------------------------------
-Qt 5 is redistributed within opencv-pytho macOS packages.
+Qt 5 is redistributed within opencv-python macOS packages.
 This license applies to Qt binaries in the directory cv2/.
 
                    GNU LESSER GENERAL PUBLIC LICENSE
@@ -754,4 +754,4 @@ General Public License ever published by the Free Software Foundation.
 whether future versions of the GNU Lesser General Public License shall
 apply, that proxy's public statement of acceptance of any version is
 permanent authorization for you to choose that version for the
-Library.
+Library.