update content length to optional

Author: laujan

articles/ai-services/translator/reference/v3-0-break-sentence.md

@@ -43,7 +43,7 @@ Request headers include:
 | ------- | ----------- |
 | Authentication header(s) <img width=200/>  | **Required request header**.<br/>See <a href="v3-0-reference.md#authentication">available options for authentication</a>. |
 | Content-Type | **Required request header**.<br/>Specifies the content type of the payload. Possible values are: `application/json`. |
-| Content-Length    | **Required request header**.<br/>The length of the request body.  |
+| Content-Length    | **Optional**.<br/>The length of the request body.  |
 | X-ClientTraceId   | **Optional**.<br/>A client-generated GUID to uniquely identify the request. You can omit this header if you include the trace ID in the query string using a query parameter named `ClientTraceId`.  |
 
 ## Request body

articles/ai-services/translator/reference/v3-0-detect.md

@@ -41,9 +41,9 @@ Request headers include:
 | Headers | Description |
 | --- | --- |
 | Authentication header(s) | <em>Required request header</em>.<br>See [available options for authentication](./v3-0-reference.md#authentication)</a>. |
-| Content-Type | *Required request header*.<br>Specifies the content type of the payload. Possible values are: `application/json`. |
-| Content-Length | *Required request header*.<br>The length of the request body. |
-| X-ClientTraceId | *Optional*.<br>A client-generated GUID to uniquely identify the request. You can omit this header if you include the trace ID in the query string using a query parameter named `ClientTraceId`. |
+| Content-Type | _Required request header_.<br>Specifies the content type of the payload. Possible values are: `application/json`. |
+| Content-Length | _Optional_.<br>The length of the request body. |
+| X-ClientTraceId | _Optional_.<br>A client-generated GUID to uniquely identify the request. You can omit this header if you include the trace ID in the query string using a query parameter named `ClientTraceId`. |
 
 ## Request body
 

articles/ai-services/translator/reference/v3-0-dictionary-examples.md

@@ -43,7 +43,7 @@ Request headers include:
 | ------ | ----------- |
 | Authentication header(s) <img width=200/>  | **Required request header**.<br>See [Authentication](v3-0-reference.md#authentication)>available options for authentication</a>. |
 | Content-Type | **Required request header**.<br>Specifies the content type of the payload. Possible values are: `application/json`. |
-| Content-Length   | **Required request header**.<br>The length of the request body. |
+| Content-Length   | **Optional**.<br>The length of the request body. |
 | X-ClientTraceId   | **Optional**.<br>A client-generated GUID to uniquely identify the request. You can omit this header if you include the trace ID in the query string using a query parameter named `ClientTraceId`. |
 
 ## Request body

articles/ai-services/translator/reference/v3-0-dictionary-lookup.md

@@ -44,7 +44,7 @@ Request headers include:
 | ------ | ----------- |
 | Authentication header(s) | **Required request header**.<br/>See [Authentication](v3-0-reference.md#authentication).|
 | Content-Type | **Required request header**.<br>Specifies the content type of the payload. Possible values are: `application/json`. |
-| Content-Length   | **Required request header**.<br>The length of the request body. |
+| Content-Length   | **Optional**.<br>The length of the request body. |
 | X-ClientTraceId   | **Optional**.<br/>A client-generated GUID to uniquely identify the request. You can omit this header if you include the trace ID in the query string using a query parameter named `ClientTraceId`. |
 
 ## Request body

articles/ai-services/translator/reference/v3-0-translate.md

@@ -59,7 +59,7 @@ Request headers include:
 | --- | --- |
 | Authentication headers | _Required request header_.  <br>See [available options for authentication](./v3-0-reference.md#authentication). |
 | Content-Type | _Required request header_.  <br>Specifies the content type of the payload.  <br>Accepted value is `application/json; charset=UTF-8`. |
-| Content-Length | _Required request header_.  <br>The length of the request body. |
+| Content-Length | _Optional_.  <br>The length of the request body. |
 | X-ClientTraceId | _Optional_.  <br>A client-generated GUID to uniquely identify the request. You can omit this header if you include the trace ID in the query string using a query parameter named `ClientTraceId`. |
 
 ## Request body

articles/ai-services/translator/reference/v3-0-transliterate.md

@@ -41,10 +41,10 @@ Request headers include:
 
 | Headers | Description |
 | --- | --- |
-| Authentication header(s) | <em>Required request header</em>.<br/>See [available options for authentication](./v3-0-reference.md#authentication). |
-| Content-Type | *Required request header*.<br/>Specifies the content type of the payload. Possible values are: `application/json` |
-| Content-Length | *Required request header*.<br/>The length of the request body. |
-| X-ClientTraceId | *Optional*.<br/>A client-generated GUID to uniquely identify the request. You can omit this header if you include the trace ID in the query string using a query parameter named `ClientTraceId`. |
+| Authentication header(s) | _Required request header_.<br/>See [available options for authentication](./v3-0-reference.md#authentication). |
+| Content-Type | _Required request header_.<br/>Specifies the content type of the payload. Possible values are: `application/json` |
+| Content-Length | _Optional_.<br/>The length of the request body. |
+| X-ClientTraceId | _Optional_.<br/>A client-generated GUID to uniquely identify the request. You can omit this header if you include the trace ID in the query string using a query parameter named `ClientTraceId`. |
 
 ## Request body