docs: updated REST path in specs to match proto files version one

jira: DCD-XXX

x/posts/spec/08-client.md

@@ -463,43 +463,43 @@ A user can query the `posts` module using REST endpoints.
 The `Post` endpoint allows users to query a post with the given id inside a subspace with the given id.
 
 ```
-/desmos/posts/v1/subspaces/{subspace_id}/posts/{post_id}
+/desmos/posts/v2/subspaces/{subspace_id}/posts/{post_id}
 ```
 
 ### SubspacePosts
 The `SubspacePosts` endpoint allows users to query all the posts of the subspace with the given id.
 
 ```
-/desmos/posts/v1/subspaces/{subspace_id}/posts
+/desmos/posts/v2/subspaces/{subspace_id}/posts
 ```
 
 ### SectionPosts
 The `SectionPosts` endpoint allows users to return all the posts associated with the section with the given id associated
 to the subspace with the given id.
 
 ```
-/desmos/posts/v1/subspaces/{subspace_id}/sections/{section_id}/posts
+/desmos/posts/v2/subspaces/{subspace_id}/sections/{section_id}/posts
 ```
 
 ### PostAttachments
 The `PostAttachments` endpoint allows users to query all the attachment associated with the post id given living inside
 the subspace with the given id.
 
 ```
-/desmos/posts/v1/subspaces/{subspace_id}/posts/{post_id}/attachments
+/desmos/posts/v2/subspaces/{subspace_id}/posts/{post_id}/attachments
 ```
 
 ### PollAnswers
 The `PollAnswers` endpoint allows users to query al the poll answer associated with the given poll id attached to the post
 with the given post id inside the subspace with the given id.
 
 ```
-/desmos/posts/v1/subspaces/{subspace_id}/posts/{post_id}/polls/{poll_id}/answers
+/desmos/posts/v2/subspaces/{subspace_id}/posts/{post_id}/polls/{poll_id}/answers
 ```
 
 ### Params
 The `Params` endpoint allows users to query the module's parameters.
 
 ```
-/desmos/posts/v1/params
+/desmos/posts/v2/params
 ```