update readme version (#44)

Author: Nicole00

README-CN.md

@@ -111,7 +111,9 @@ nebula-algorithm 是一款基于 [GraphX](https://spark.apache.org/graphx/) 的
 |       2.1.0              |  2.0.0, 2.0.1  |
 |       2.5.0              |  2.5.0, 2.5.1  |
 |       2.6.0              |  2.6.0, 2.6.1  |
+|       2.6.1              |  2.6.0, 2.6.1  |
 |       2.6.2              |  2.6.0, 2.6.1  |
+|       3.0.0              |     3.0.0      |
 |     3.0-SNAPSHOT         |     nightly    |
 
 ## 贡献

README.md

@@ -121,6 +121,8 @@ You could submit the entire spark application or invoke algorithms in `lib` libr
 |       2.5.0              |  2.5.0, 2.5.1  |
 |       2.6.0              |  2.6.0, 2.6.1  |
 |       2.6.1              |  2.6.0, 2.6.1  |
+|       2.6.2              |  2.6.0, 2.6.1  |
+|       3.0.0              |     3.0.0      |
 |       3.0-SNAPSHOT       |     nightly    |
 
 ## Contribute