Fix a few minor typos from contrib docs

Author: JeremyDahlgren

docs/add-new-api.md

@@ -3,11 +3,11 @@
 It might happen that a new API in Elasticsearch is not yet defined
 in this repository, or we do have an endpoint definition in [`/specification/_json_spec`](../specification/_json_spec)
 but we don't have a type definition for it.
-In this document you will see how to add a new endpopint and how to add a new endpoint definition.
+In this document you will see how to add a new endpoint and how to add a new endpoint definition.
 
 ## How to add a new endpoint
 
-Add a new endpoint is straightforward, you only need to copy-paste the json rest-api-spec defintion
+Add a new endpoint is straightforward, you only need to copy-paste the json rest-api-spec definition
 from the Elasticsearch repository inside [`/specification/_json_spec`](../specification/_json_spec)
 and you are good to go.
 
@@ -17,10 +17,10 @@ or [here](https://github.com/elastic/elasticsearch/tree/7.x/x-pack/plugin/src/te
 ## How to add the definition of an endpoint
 
 Once you have added a new endpoint definition, the next step is to add its type definition.
-First of all, you should find the most approariate place inside [`/specification`](../specification)
+First of all, you should find the most appropriate place inside [`/specification`](../specification)
 where to put the new definition. The content of [`/specification`](../specification)
-tryied to mimic the Elasticsearch online documentation, so you can use it as inspiration.
-For example, the index document defintion can be found in [`/specification/_global/index`](../specification/_global/index).
+tried to mimic the Elasticsearch online documentation, so you can use it as inspiration.
+For example, the index document definition can be found in [`/specification/_global/index`](../specification/_global/index).
 
 Once you have found the best place for the new definition, you should create a new file for it.
 The filename should be the same of the type definition you are writing, for example:
@@ -40,16 +40,16 @@ you can define it in the same file where it's used, unless is a commonly used ty
 
 ### Add the endpoint request definition
 
-Request definitions are slighly different from other definitions.
+Request definitions are slightly different from other definitions.
 It is required that the request definition is named `Request`.
-A request definition is an interface and should contains three top level keys:
+A request definition is an interface and should contain these top level keys:
 
 - `urls`: the URL paths templates and allowed HTTP methods
 - `path_parts`: the path parameters (eg: `indices`, `id`...)
 - `query_parameters`: the query parameters (eg: `timeout`, `pipeline`...)
 - `body`: the body parameters (eg: `query` or user defined entities)
 
-Furthermore, every request definition **must** contain three JS Doc tags:
+Furthermore, every request definition **must** contain these JS Doc tags:
 
 - `@rest_spec_name`: the API name (eg: `search`, `indices.create`...).
 - `@availability` Which flavor of Elasticsearch is this API available for? (eg `stack` or `serverless`)
@@ -130,7 +130,7 @@ class Response {
 ```
 
 As you can see, for responses there are no custom top level keys, as the
-response definition represents the body of a succesful response.
+response definition represents the body of a successful response.
 
 #### Generics
 
@@ -172,7 +172,7 @@ class Response {
 Add an `examples` folder and `request` and `xxx_response` subfolders (where `xxx` is the relevant response code). The file names within these folders should be unique (for example,`DownsampleRequestExample1.yaml` not `RequestExample1.yaml`).
 
 These examples are for use in the API documentation and must adhere to the [OpenAPI 3.0 Example object specification](https://spec.openapis.org/oas/v3.0.3#example-object). They must have a `value` field that contains the request or response body.
-If there are multiple examples for the endpoint, they must each have a brief `summary` field, which is used as the label for the example. You can also optionaly provide an explanation in a `description` field.
+If there are multiple examples for the endpoint, they must each have a brief `summary` field, which is used as the label for the example. You can also optionally provide an explanation in a `description` field.
 
 For example:
 
@@ -196,5 +196,5 @@ value: |-
 ```
 
 NOTE: A good example covers a very common use case or demonstrates a more complex but critical use case.
-It involves realistic data sets ( rather than generic "hello world" values).
+It involves realistic data sets (rather than generic "hello world" values).
 If it requires detailed setup or explanations, however, it is more appropriate for coverage in longer-form narrative documentation.

docs/modeling-guide.md

@@ -148,7 +148,7 @@ property: UserDefinedValue
 
 ### Numbers
 
-The numeric type in TypeScript is `number`, but given that this specification targets mutliple languages,
+The numeric type in TypeScript is `number`, but given that this specification targets multiple languages,
 it offers a bunch of aliases that represent the type that should be used if the language supports it:
 
 ```ts
@@ -502,7 +502,7 @@ Code generators should track the `es_quirk` they implement and fail if a new unh
 
 ### Additional information
 
-If needed, you can specify additional information on each type with the approariate JSDoc tag.
+If needed, you can specify additional information on each type with the appropriate JSDoc tag.
 Following you can find a list of the supported tags:
 
 #### `@availability`

docs/specification-structure.md

@@ -1,7 +1,7 @@
 # Specification structure
 
 The [`/specification`](../specification) folders follows a set of rules to
-keep the defintion easy to access and contribute, while maintaing
+keep the definition easy to access and contribute, while maintaining
 the generated schema consistent and useful for language generators.
 
 ## Rules
@@ -29,7 +29,7 @@ end with `Request` or `Response`.
 
 ### Request and Response definitions
 
-Request and Reponse definitions should be placed by structly following
+Request and Response definitions should be placed by strictly following
 the rest-api-spec structure.
 For example, the request and response definition for `indices.put_mapping`
 should go in [`/specification/indices/put_mapping`](../specification/indices/put_mapping).