Update docs.

Author: RDGthree

docs/rules/sort-comp.md

@@ -89,9 +89,11 @@ The default configuration is:
 * `lifecycle` is referring to the `lifecycle` group defined in `groups`.
 * `everything-else` is a special group that match all the methods that do not match any of the other groups.
 * `render` is referring to the `render` method.
-* `type-annotations`. This group is not specified by default, but can be used to enforce flow annotations to be at the top.
+* `type-annotations`. This group is not specified by default, but can be used to enforce flow annotations positioning.
 * `getters` This group is not specified by default, but can be used to enforce class getters positioning.
 * `setters` This group is not specified by default, but can be used to enforce class setters positioning.
+* `instance-variables` This group is not specified by default, but can be used to enforce all other instance variables positioning.
+* `instance-methods` This group is not specified by default, but can be used to enforce all other instance methods positioning.
 
 You can override this configuration to match your needs.