Update SecurityExploits/Chrome/SandboxEscape/CVE-2021-30528/aarch64/README.md

Co-authored-by: intrigus-lgtm <60750685+intrigus-lgtm@users.noreply.github.com>

Author: xcorail

SecurityExploits/Chrome/SandboxEscape/CVE-2021-30528/aarch64/README.md

@@ -1,6 +1,6 @@
 ## 64 bit version
 
-The 64 bit version 90.0.4430.91 of Chrome are tested with the following devices: 
+The 64 bit version 90.0.4430.91 of Chrome is tested with the following devices: 
 1. Pixel 3a firmware version RQ1A.210205.004
 2. Samsung Galaxy A71 firmware version A715FXXU3BUB5