added a test for series

docs/index.rst

@@ -11,6 +11,7 @@ Welcome to tempsdb's documentation!
    :caption: Contents:
 
    time-series
+   usage
    exceptions
 
 It tries to use mmap for reads where possible, and in general be as zero-copy as possible (ie. the

docs/usage.rst

+Usage
+=====
+
+Start off by instantiating an object
+
+.. autoclass:: tempsdb.database.Database
+    :members:
+
+Then you can create and retrieve particular series:
+
+.. autoclass:: tempsdb.series.TimeSeries
+    :members:
+