Fix docstring formatting errors

sanic/app.py

@@ -305,7 +305,7 @@ class Sanic:
         the output URL's query string.
 
         :param view_name: string referencing the view name
-        :param **kwargs: keys and values that are used to build request
+        :param \*\*kwargs: keys and values that are used to build request
             parameters and query string arguments.
 
         :return: the built URL

sanic/response.py

@@ -251,8 +251,7 @@ def text(body, status=200, headers=None,
     :param body: Response data to be encoded.
     :param status: Response code.
     :param headers: Custom Headers.
-    :param content_type:
-        the content type (string) of the response
+    :param content_type: the content type (string) of the response
     """
     return HTTPResponse(
         body, status=status, headers=headers,
@@ -266,8 +265,7 @@ def raw(body, status=200, headers=None,
     :param body: Response data.
     :param status: Response code.
     :param headers: Custom Headers.
-    :param content_type:
-        the content type (string) of the response
+    :param content_type: the content type (string) of the response.
     """
     return HTTPResponse(body_bytes=body, status=status, headers=headers,
                         content_type=content_type)
@@ -316,9 +314,9 @@ def stream(
         content_type="text/plain; charset=utf-8"):
     """Accepts an coroutine `streaming_fn` which can be used to
     write chunks to a streaming response. Returns a `StreamingHTTPResponse`.
-    Example usage:
 
-    ```
+    Example usage::
+
         @app.route("/")
         async def index(request):
             async def streaming_fn(response):
@@ -326,7 +324,6 @@ def stream(
                 await response.write('bar')
 
             return stream(streaming_fn, content_type='text/plain')
-    ```
 
     :param streaming_fn: A coroutine accepts a response and
         writes content to that response.

sanic/router.py

@@ -75,8 +75,9 @@ class Router:
         """Parse a parameter string into its constituent name, type, and
         pattern
 
-        For example:
-        `parse_parameter_string('<param_one:[A-z]>')` ->
+        For example::
+
+            parse_parameter_string('<param_one:[A-z]>')` ->
                 ('param_one', str, '[A-z]')
 
         :param parameter_string: String to parse