sort language versions to match natural ordering

also fixes the bullet-point under 3.3 to actually be a bullet point

Author: bishabosha

docs/_docs/reference/language-versions/source-compatibility.md

@@ -17,16 +17,16 @@ The default Scala language syntax version currently supported by the Dotty compi
     - in conjunction with `-rewrite`, offer code rewrites from Scala 2.13 to 3.0.
 
 - [`3.0`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$3/0$.html), [`3.1`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$3/1$.html): the default set of features included in scala versions `3.0.0` to `3.1.3`.
+- [`3.2-migration`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$3/2-migration$.html): the same as `3.2`, but in conjunction with `-rewrite`, offer code rewrites from Scala `3.0/3.1` to `3.2`.
 - [`3.2`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$3/2$.html): the same as `3.0` and `3.1`, but in addition:
   - [stricter pattern bindings](https://docs.scala-lang.org/scala3/reference/changed-features/pattern-bindings.html) are now enabled (part of `future` in earlier `3.x` releases), producing warnings for refutable patterns. These warnings can be silenced to achieve the same runtime behavior, but in `future` they become errors and refutable patterns will not compile.
   - [Nonlocal returns](https://docs.scala-lang.org/scala3/reference/dropped-features/nonlocal-returns.html) now produce a warning upon usage (they are still an error under `future`).
-- [`3.2-migration`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$3/2-migration$.html): the same as `3.2`, but in conjunction with `-rewrite`, offer code rewrites from Scala `3.0/3.1` to `3.2`.
-- [`3.3`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$3/3$.html): the same as `3.2`, but in addition:
-  -[Fewer braces syntax](https://docs.scala-lang.org/scala3/reference/other-new-features/indentation.html#optional-braces-for-method-arguments-1) is enabled by default.
 - [`3.3-migration`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$3/3-migration$.html): the same as `3.3`
+- [`3.3`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$3/3$.html): the same as `3.2`, but in addition:
+  - [Fewer braces syntax](https://docs.scala-lang.org/scala3/reference/other-new-features/indentation.html#optional-braces-for-method-arguments-1) is enabled by default.
+- [`future-migration`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$future-migration$.html): Same as `future` but with additional helpers to migrate from `3.3`. Similarly to the helpers available under `3.0-migration`, these include migration warnings and optional rewrites.
 - [`future`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$future$.html): A preview of changes that will be introduced in `3.x` versions after `3.3`.
 Some Scala 2 specific idioms are dropped in this version. The feature set supported by this version may grow over time as features become stabilised for preview.
-- [`future-migration`](https://scala-lang.org/api/3.x/scala/runtime/stdLibPatches/language$$future-migration$.html): Same as `future` but with additional helpers to migrate from `3.3`. Similarly to the helpers available under `3.0-migration`, these include migration warnings and optional rewrites.
 
 There are two ways to specify a language version :