Remove redundant '+' for min Gradle column

Author: Goooler

README.md

@@ -29,6 +29,6 @@ Gradle plugin for creating fat/uber JARs with support for package relocation.
 | 5.2.0 - 6.1.0  | 5.x - 6.x          | 7                |
 | 6.1.0+         | 6.x                | 8                |
 | 7.0.0+         | 7.x                | 8                |
-| 8.0.0+         | 8.0+               | 8                |
-| 8.3.0+         | 8.3+               | 8                |
-| 9.0.0+         | 8.3+               | 11               |
+| 8.0.0+         | 8.0                | 8                |
+| 8.3.0+         | 8.3                | 8                |
+| 9.0.0+         | 8.3                | 11               |