Fix typos in usernames (#975)

* Update 2.0 release date
* Fix username typos

Author: terriko

doc/RELEASE.md

@@ -6,7 +6,7 @@ Release date: 12 Nov 2020
 
 This release features code from our three successful Google Summer of Code students!
 
-* @SingHrmn made improvements to our output formats, including adding a
+* @SinghHrmn made improvements to our output formats, including adding a
   new HTML human-readable report format.  You can try out a demo at <https://intel.github.io/cve-bin-tool/>
   * Read [Harmandeep's final GSoC report](https://gist.github.com/SinghHrmn/dd83b31b22bf73e45bd8489117e20a96) for more details.
 
@@ -26,7 +26,7 @@ This release also includes contributions from the following new contributors:
 * @imsahil007
 * @chaitanyamogal
 * @Rahul2044
-* @Wicket7000
+* @Wicked7000
 * @willmcgugan
 * @kritirikhi
 * @sakshatshinde