Readme format changes

Author: elacuesta

README.md

@@ -43,34 +43,44 @@ Crawlera middleware won't be able to handle them.
 
 ### Settings
 
-* `CRAWLERA_FETCH_ENABLED` (type `bool`, default `False`). Whether or not the middleware will be enabled,
-    i.e. requests should be downloaded using the Crawlera Fetch API. The `crawlera_fetch_enabled` spider
-    attribute takes precedence over this setting.
+* `CRAWLERA_FETCH_ENABLED` (type `bool`, default `False`)
 
-* `CRAWLERA_FETCH_APIKEY` (type `str`). API key to be used to authenticate against the Crawlera endpoint
-    (mandatory if enabled)
+    Whether or not the middleware will be enabled, i.e. requests should be downloaded using
+    the Crawlera Fetch API. The `crawlera_fetch_enabled` spider attribute takes precedence
+    over this setting.
+
+* `CRAWLERA_FETCH_APIKEY` (type `str`)
+
+    API key to be used to authenticate against the Crawlera endpoint (mandatory if enabled)
+
+* `CRAWLERA_FETCH_URL` (Type `str`, default `"http://fetch.crawlera.com:8010/fetch/v2/"`)
 
-* `CRAWLERA_FETCH_URL` (Type `str`, default `"http://fetch.crawlera.com:8010/fetch/v2/"`).
     The endpoint of a specific Crawlera instance
 
-* `CRAWLERA_FETCH_RAISE_ON_ERROR` (type `bool`, default `True`). Whether or not the middleware will
-    raise an exception if an error occurs while downloading or decoding a request. If `False`, a
-    warning will be logged and the raw upstream response will be returned upon encountering an error.
+* `CRAWLERA_FETCH_RAISE_ON_ERROR` (type `bool`, default `True`)
+
+    Whether or not the middleware will raise an exception if an error occurs while downloading
+    or decoding a response. If `False`, a warning will be logged and the raw upstream response
+    will be returned upon encountering an error.
 
 * `CRAWLERA_FETCH_DOWNLOAD_SLOT_POLICY` (type `enum.Enum` - `crawlera_fetch.DownloadSlotPolicy`,
-    default `DownloadSlotPolicy.Domain`).
+    default `DownloadSlotPolicy.Domain`)
+
     Possible values are `DownloadSlotPolicy.Domain`, `DownloadSlotPolicy.Single`,
     `DownloadSlotPolicydefault` (Scrapy default). If set to `DownloadSlotPolicy.Domain`, please
     consider setting `SCHEDULER_PRIORITY_QUEUE="scrapy.pqueues.DownloaderAwarePriorityQueue"` to
-    make better usage of concurrency options and avoid delays.
+    make better usage of concurrency options and avoiding delays.
 
 * `CRAWLERA_FETCH_DEFAULT_ARGS` (type `dict`, default `{}`)
+
     Default values to be sent to the Crawlera Fetch API. For instance, set to `{"device": "mobile"}`
     to render all requests with a mobile profile.
 
 ### Spider attributes
 
-* `crawlera_fetch_enabled` (type `bool`, default `False`). Whether or not the middleware will be enabled.
+* `crawlera_fetch_enabled` (type `bool`, default `False`)
+
+    Whether or not the middleware will be enabled.
     Takes precedence over the `CRAWLERA_FETCH_ENABLED` setting.
 
 ### Log formatter