message: chore(docs): note that api 2.3 released in beta
diff: @@ -97,7 +97,7 @@ This table lists the correspondence between Protocol API versions and robot soft
  +-------------+-----------------------------+
  | 2.2 | 3.16.0 |
  +-------------+-----------------------------+
  -| 2.3 | 3.17.0 |
  +| 2.3 | 3.17.0 (In Beta) |
  +-------------+-----------------------------+
  Changes in API Versions
  