docs: fix typos across documentation

CONTRIBUTING.md

@@ -403,4 +403,4 @@ The various language emitters will live in the in the repo under the following d
 There is a goal to be able to ship these emitter packages independent from the rest of the packages in this repo as such they by default be excluded from the root pnpm workspace. Any npm package work
 will be isolated to those directories with a goal of eventually moving to a consistent model so that we can both work in isolation as well as work as a E2E.
 
-For language specific contributing information look for the contributing.md file in that specific lanague emitter folder.
+For language specific contributing information look for the contributing.md file in that specific language emitter folder.

README.md

@@ -8,7 +8,7 @@ TypeSpec is excellent for generating many different API description formats, cli
 
 Using TypeSpec, you can create reusable patterns for all aspects of an API and package those reusable patterns into libraries. These patterns establish "guardrails" for API designers and make it easier to follow best practices than to deviate from them. TypeSpec also has a rich linter framework with the ability to flag anti-patterns as well as an emitter framework that lets you control the output to ensure it follows the patterns you want.
 
-TypeSpec is a Microsoft-built, community-supported project. Your ideas, feedbacks, and code make all the difference and we deeply appreciate the support from the community.
+TypeSpec is a Microsoft-built, community-supported project. Your ideas, feedback, and code make all the difference and we deeply appreciate the support from the community.
 
 ## [Installation](https://typespec.io/docs)
 

packages/openapi3/README.md

@@ -46,7 +46,7 @@ See [Configuring output directory for more info](https://typespec.io/docs/handbo
 
 **Type:** `"yaml" | "json"`
 
-If the content should be serialized as YAML or JSON. Default 'yaml', it not specified infer from the `output-file` extension
+If the content should be serialized as YAML or JSON. Default 'yaml', if not specified infer from the `output-file` extension
 
 ### `output-file`
 

packages/playground/README.md

@@ -8,7 +8,7 @@ It can be used as a standalone custom playground with your own libraries or comp
 
 ### Standalone
 
-The stanalone playground provides some vite helpers to make it easy to get started.
+The standalone playground provides some vite helpers to make it easy to get started.
 
 In `vite.config.ts`: