bring error sections in line with python docs

note that one section was completely removed - the "get all templates"
endpoint does not have any errors listed at all in the python docs.

Author: Leo Hemsted

source/documentation/_api_docs.md

@@ -1007,10 +1007,8 @@ If the request is not successful, the API returns `json` containing the relevant
 
 |status_code|Error message|How to fix|
 |:---|:---|:---|
-|`400`|`[{`<br>`"error": "ValidationError",`<br>`"message": "id is not a valid UUID"`<br>`}]`|Check the notification ID|
-|`403`|`[{`<br>`"error": "AuthError",`<br>`"message": "Error: Your system clock must be accurate to within 30 seconds"`<br>`}]`|Check your system clock|
-|`403`|`[{`<br>`"error": "AuthError",`<br>`"message": "Invalid token: API key not found"`<br>`}]`|Use the correct API key. Refer to [API keys](#api-keys) for more information|
-|`404`|`[{`<br>`"error": "NoResultFound",`<br>`"message": "No result found"`<br>`}]`|Check the notification ID|
+|`400`|`[{`<br>`"error": "ValidationError",`<br>`"message": "status ‘elephant’ is not one of [cancelled, created, sending, sent, delivered, pending, failed, technical-failure, temporary-failure, permanent-failure, pending-virus-check, validation-failed, virus-scan-failed, returned-letter, accepted, received]"`<br>`}]`|Change the [status argument](#status-optional)|
+|`400`|`[{`<br>`"error": "ValidationError",`<br>`"message": "‘Apple’ is not one of [sms, email, letter]"`<br>`}]`|Change the [template_type argument](#template-type-optional)|
 
 ### Email status descriptions
 
@@ -1233,7 +1231,7 @@ If the request is not successful, the API returns `json` containing the relevant
 |:---|:---|:---|
 |`403`|`[{`<br>`"error": "AuthError",`<br>`"message": "Error: Your system clock must be accurate to within 30 seconds"`<br>`}]`|Check your system clock|
 |`403`|`[{`<br>`"error": "AuthError",`<br>`"message": "Invalid token: API key not found"`<br>`}]`|Use the correct API key. Refer to [API keys](#api-keys) for more information|
-|`404`|`[{`<br>`"error": "NoResultFound",`<br>`"message": "No result Found"`<br>`}]`|Check your [template ID](#get-a-template-by-id-and-version-arguments-template-id-required) and [version](#version-required)|
+|`404`|`[{`<br>`"error": "NoResultFound",`<br>`"message": "No result found"`<br>`}]`|Check your [template ID](#get-a-template-by-id-and-version-arguments-template-id-required) and [version](#version-required)|
 
 
 ### Get all templates
@@ -1290,26 +1288,6 @@ If no templates exist for a template type or there no templates for a service, t
 }
 ```
 
-#### Error codes
-
-If the request is not successful, the API returns `json` containing the relevant error code. For example:
-
-```javascript
-{
-  "status_code": 400,
-  "errors": [
-    {"error": "ValidationError", "message": "type blah is not one of [sms, email, letter, broadcast]"}
-  ]
-}
-```
-
-|error.status_code|error.message|Notes|
-|:---|:---|:---|
-|`400`|`[{`<br>`"error": "ValidationError",`<br>`"message": "type <TYPE> is not one of [sms, email, letter, broadcast]"`<br>`}]`|Make sure that the provided `type` is one of: email, sms, letter |
-|`400`|`[{`<br>`"error": "NoResultFound",`<br>`"message": "No result found"`<br>`}]`|Check the [template ID](#generate-a-preview-template-arguments-template-id-required)|
-|`403`|`[{`<br>`"error": "AuthError",`<br>`"message": "Error: Your system clock must be accurate to within 30 seconds"`<br>`}]`|Check your system clock|
-|`403`|`[{`<br>`"error": "AuthError",`<br>`"message": "Invalid token: API key not found"`<br>`}]`|Use the correct API key. Refer to [API keys](#api-keys) for more information|
-
 ### Generate a preview template
 
 #### Method