Fix misspellings (#574)

Author: Jks15063

doc/hackney.md

@@ -529,7 +529,7 @@ setopts(Ref::<a href="#type-client_ref">client_ref()</a>, Options::list()) -&gt;
 set client options.
 Options are:
 - `async`: to fetch the response asynchronously
-- `{async, once}`: to receive the response asynchronously once time.
+- `{async, once}`: to receive the response asynchronously one time.
 To receive the next message use the function `hackney:stream_next/1`.
 - `{stream_to, pid()}`: to set the pid where the messages of an
 asynchronous response will be sent.
@@ -642,4 +642,3 @@ stream_next(Ref::<a href="#type-client_ref">client_ref()</a>) -&gt; ok | {error,
 
 continue to the next stream message. Only use it when
 `{async, once}` is set in the client options.
-

src/hackney.erl

@@ -95,7 +95,7 @@ cancel_request(Ref) ->
 %% @doc set client options.
 %% Options are:
 %% - `async': to fetch the response asynchronously
-%% - `{async, once}': to receive the response asynchronously once time.
+%% - `{async, once}': to receive the response asynchronously one time.
 %% To receive the next message use the function `hackney:stream_next/1'.
 %% - `{stream_to, pid()}': to set the pid where the messages of an
 %% asynchronous response will be sent.