Minor docs fixes (#58)

Author: lovelydinosaur

README.md

@@ -38,7 +38,7 @@ Lets get to work...
 
 ```python
 >>> import httpx
->>> cli = httpx.Client()
+>>> cli = httpx.open_client()
 >>> r = cli.get('https://www.example.org/')
 >>> r
 <Response [200 OK]>

docs/connections.md

@@ -134,7 +134,7 @@ with httpx.open_connection("http://127.0.0.1:8080") as conn:
 
 ---
 
-*Describe `.send()` rationale.*
+*Describe `.send()` rationale, and the `Transport` interface.*
 
 ---
 

docs/index.md

@@ -44,7 +44,7 @@ Lets get to work...
 >>> r = cli.get('https://www.example.org/')
 >>> r
 <Response [200 OK]>
->>> r.status
+>>> r.status_code
 200
 >>> r.headers['content-type']
 'text/html; charset=UTF-8'
@@ -63,7 +63,7 @@ The httpx 1.0 [design proposal](https://staging.d2pg1230p7w6nv.amplifyapp.com/)
 * [Requests & Responses](requests-and-responses.md)
 * [URLs](urls.md)
 * [Headers](headers.md)
-* [Content Types](content.md)
+* [Content Types](content-types.md)
 * [Connections](connections.md)
 * [Low Level Networking](networking.md)
 * [About](about.md)