Update versions in readme

Author: lydell

README.md

@@ -738,14 +738,14 @@ eslint-config-prettier has been tested with:
   - eslint-config-prettier 5.1.0 and older were tested with ESLint 5.x
   - eslint-config-prettier 2.10.0 and older were tested with ESLint 4.x
   - eslint-config-prettier 2.1.1 and older were tested with ESLint 3.x
-- prettier 1.19.1
-- @typescript-eslint/eslint-plugin 2.18.0
+- prettier 2.0.1
+- @typescript-eslint/eslint-plugin 2.24.0
 - eslint-plugin-babel 5.3.0
 - eslint-plugin-flowtype 4.6.0
-- eslint-plugin-react 7.18.0
+- eslint-plugin-react 7.19.0
 - eslint-plugin-standard 4.0.1
-- eslint-plugin-unicorn 15.0.1
-- eslint-plugin-vue 6.1.2
+- eslint-plugin-unicorn 17.2.1
+- eslint-plugin-vue 6.2.2
 
 Have new rules been added since those versions? Have we missed any rules? Is there a plugin you would like to see exclusions for? Open an issue or a pull request!