[chore] Clarify 1.2.x compatibility

Author: chadlwilson

README.md

@@ -13,11 +13,11 @@ For more information on Rack, visit http://rack.github.io/.
 
 ## Compatibility
 
-| JRuby-Rack Series                                          | Status     | Rack      | JRuby      | Java | Rails     | Target Servlet API  | Notes                                      |
-|------------------------------------------------------------|------------|-----------|------------|------|-----------|---------------------|--------------------------------------------|
-| [1.2](https://github.com/jruby/jruby-rack/tree/1.2-stable) | Maintained | 2.2       | 9.3 → 9.4  | 8+   | 5.0 → 7.2 | 3.0 (Java EE 6)     | Servlet 3.1 → 4.0 OK with some containers. |
-| [1.1](https://github.com/jruby/jruby-rack/tree/1.1-stable) | EOL        | 1.x → 2.2 | 1.6 → 9.4  | 6+   | 2.1 → 5.2 | 2.5 (Java EE 5)     | Servlet 3.0 → 4.0 OK with some containers. |
-| 1.0                                                        | EOL        | 0.9 → 1.x | 1.1 → 1.9  | 5+   | 2.1 → 3.x | 2.5 (Java EE 5)     |                                            |
+| JRuby-Rack Series                                              | Status        | Rack      | JRuby     | Java | Rails     | Target Servlet API | Notes                                                          |
+|----------------------------------------------------------------|---------------|-----------|-----------|------|-----------|--------------------|----------------------------------------------------------------|
+| [**1.2**](https://github.com/jruby/jruby-rack/tree/1.2-stable) | Maintained    | 2.2       | 9.3 → 9.4 | 8+   | 5.0 → 7.2 | 3.0 (Java EE 6)    | ✅ _Unofficial_: Servlet 3.1 → 4.0 also OK with most containers |
+| [**1.1**](https://github.com/jruby/jruby-rack/tree/1.1-stable) | EOL @ 2024-05 | 1.x → 2.2 | 1.6 → 9.4 | 6+   | 2.1 → 5.2 | 2.5 (Java EE 5)    | ✅ _Unofficial_: Servlet 3.0 → 4.0 also OK with most containers |
+| [**1.0**](https://github.com/jruby/jruby-rack/tree/1.0.10)     | EOL @ 2011-11 | 0.9 → 1.x | 1.1 → 1.9 | 5+   | 2.1 → 3.x | 2.5 (Java EE 5)    |                                                                |
 
 ## Getting Started