8302470: Change JBS version in .jcheck/conf to jfxNN[.0.MM]

Reviewed-by: arapte

.jcheck/conf

@@ -24,7 +24,7 @@
 [general]
 project=openjfx
 jbs=jdk
-version=openjfx20
+version=jfx20
 
 [repository]
 tags=(jdk-){0,1}([1-9]([0-9]*)(\.(0|[1-9][0-9]*)){0,3})(\+(([0-9]+))|(-ga))|[1-9]((\.\d{1,3}){0,2})-((b\d{2,3})|(ga))|[1-9]u(\d{1,3})-((b\d{2,3})|(ga))

UPDATING-VERSION.md

@@ -11,7 +11,7 @@ Here are the steps to increment the JavaFX release version number to a new
 feature version (for example, from 13 to 14).
 
 * In `.jcheck/conf`, modify the `version` property in the `[general]`
-section to increment the version number from `openjfx$N` to `openjfx$N+1`.
+section to increment the JBS version number from `jfx$N` to `jfx$N+1`.
 
 * In `build.properties`, modify the following properties to increment the
 feature version number from `N` to `N+1`:
@@ -33,8 +33,8 @@ Here are the steps to increment the JavaFX release version number to a new
 security version (for example, from 13 to 13.0.1).
 
 * In `.jcheck/conf`, modify the `version` property in the `[general]`
-section to increment the version number from `openjfx$N` to `openjfx$N.0.1`
-or from `openjfx$N.0.M` to `openjfx$N.0.$M+1`.
+section to increment the JBS version number from `jfx$N` to `jfx$N.0.1`
+or from `jfx$N.0.M` to `jfx$N.0.$M+1`.
 
 * In `build.properties`, modify the `jfx.release.security.version` property
 to increment the security version number from `M` to `M+1`.