Add Readme

Update test to match example in Readme.

Readme.md

@@ -0,0 +1,53 @@
+asynctest
+=========
+
+Complements the standard [unittest][1] module in Nim to allow testing of
+asynchronous code.
+
+Installation
+------------
+
+Use the [Nimble][2] package manager to add asynctest to an existing project.
+Add the following to its .nimble file:
+
+```nim
+requires "asynctest >= 0.1.0 & < 0.2.0"
+```
+
+Usage
+-----
+
+Simply replace `test` with `asynctest` when you need to await asynchronous calls
+in the test. The same holds for `asyncsetup` and `asyncteardown`, which allow
+you to await asynchronous calls during test setup and teardown.
+
+Example
+-------
+
+```nim
+
+import unittest
+import asynctest
+import asyncdispatch # alternatively: import chronos
+
+proc someAsyncProc {.async.} =
+  # perform some async operations using await
+
+suite "test async proc":
+
+  asyncsetup:
+    # invoke await in the test setup:
+    await someAsyncProc()
+
+  asyncteardown:
+    # invoke await in the test teardown:
+    await someAsyncProc()
+
+  asynctest "some test":
+    # invoke await in tests:
+    await someAsyncProc()
+
+```
+
+[1]: https://nim-lang.org/docs/unittest.html
+[2]: https://github.com/nim-lang/nimble

tests/testAsyncTest.nim

@@ -2,15 +2,20 @@ import std/unittest
 import std/asyncdispatch
 import pkg/asynctest
 
-suite "async tests":
+proc someAsyncProc {.async.} =
+  # perform some async operations using await
+  discard
 
-  proc asyncproc {.async.} = discard
+suite "test async proc":
 
-  asyncsetup: # allows await in setup
-    await asyncproc()
+  asyncsetup:
+    # invoke await in the test setup:
+    await someAsyncProc()
 
-  asyncteardown: # allows await in teardown
-    await asyncproc()
+  asyncteardown:
+    # invoke await in the test teardown:
+    await someAsyncProc()
 
-  asynctest "allows await in tests":
-    await asyncproc()
+  asynctest "async test":
+    # invoke await in tests:
+    await someAsyncProc()