[Blog] dstack 0.20 GA: Fleet-first UX and other important changes (#3401)

Author: peterschmidt85

docs/blog/posts/0_20.md

@@ -39,7 +39,7 @@ For users who previously relied on auto-created fleets, similar behavior can be
     name: default
 
     # Can be a range or a fixed number
-    # Allow to provision of up to 2 instances
+    # Allow to provision up to 2 instances
     nodes: 0..2
 
     # Uncomment to ensure instances are inter-connected
@@ -87,7 +87,7 @@ This release updates several defaults related to run configuration. The goal is
 
 Previously, the `working_dir` property defaulted to `/workflow`. Now, the default working directory is always taken from the Docker image.
 
-The working directory in the default Docker images (if you don't specify image) is now set to `/dstack/run`.
+The working directory in the default Docker images (if you don't specify `image`) is now set to `/dstack/run`.
 
 ### Repo directory