docs: fix incorrect Ubuntu uninstall command

mjcheetham · web-flow · commit 5e0646b336e6 · 2022-06-15T10:21:06.000+01:00
Fix the Ubuntu uninstall command which used the wrong package name.
diff --git a/README.md b/README.md
@@ -111,7 +111,7 @@ To uninstall:
 
 ```shell
 git-credential-manager-core unconfigure
-sudo dpkg -r gcm
+sudo dpkg -r gcmcore
 ```
 
 #### Other distributions
