platfrom ==> platform

Author: ydah

en/news/_posts/2022-09-09-ruby-3-2-0-preview2-released.md

@@ -77,7 +77,7 @@ The original proposal is https://bugs.ruby-lang.org/issues/17837
 
 * We no longer bundle 3rd party sources like `libyaml`, `libffi`.
 
-    * libyaml source has been removed from psych. You may need to install `libyaml-dev` with Ubuntu/Debian platfrom. The package name is different each platforms.
+    * libyaml source has been removed from psych. You may need to install `libyaml-dev` with Ubuntu/Debian platform. The package name is different each platforms.
 
     * libffi will be removed from `fiddle` at preview2
 

en/news/_posts/2022-11-11-ruby-3-2-0-preview3-released.md

@@ -94,7 +94,7 @@ The original proposal is <https://bugs.ruby-lang.org/issues/17837>
 
 * We no longer bundle 3rd party sources like `libyaml`, `libffi`.
 
-    * libyaml source has been removed from psych. You may need to install `libyaml-dev` with Ubuntu/Debian platfrom. The package name is different each platforms.
+    * libyaml source has been removed from psych. You may need to install `libyaml-dev` with Ubuntu/Debian platform. The package name is different each platforms.
 
     * bundled libffi source is also removed from `fiddle`
 

en/news/_posts/2022-12-06-ruby-3-2-0-rc1-released.md

@@ -318,7 +318,7 @@ The following deprecated methods are removed.
 
 * We no longer bundle 3rd party sources like `libyaml`, `libffi`.
 
-    * libyaml source has been removed from psych. You may need to install `libyaml-dev` with Ubuntu/Debian platfrom. The package name is different for each platform.
+    * libyaml source has been removed from psych. You may need to install `libyaml-dev` with Ubuntu/Debian platform. The package name is different for each platform.
 
     * Bundled libffi source is also removed from `fiddle`