Fix capitalization

Author: ldko

README.md

@@ -7,7 +7,7 @@ OpenWayback is no longer under active development. For high-fidelity replay of w
 [IIPC recommends][3] using [Webrecorder's pywb][2]. For those currently hosting instances of OpenWayback,
 pywb documentation provides a [transition guide][4].
 
-For documentation on using Openwayback, see [the wiki][1].
+For documentation on using OpenWayback, see [the wiki][1].
 
 [1]: https://github.com/iipc/openwayback/wiki
 [2]: https://github.com/Webrecorder/pywb