Fix punctuation in Prometheus documentation

presto-docs/src/main/sphinx/connector/prometheus.rst

@@ -3,12 +3,12 @@ Prometheus Connector
 ====================
 
 The Prometheus connector allows reading
-`Prometheus <https://prometheus.io/>`_.
+`Prometheus <https://prometheus.io/>`_
 metrics as tables in Presto.
 
 The mechanism for querying Prometheus is to use the Prometheus HTTP API. Specifically, all queries are resolved to Prometheus Instant queries
-with a form like: http://localhost:9090/api/v1/query?query=up[21d]&time=1568229904.000"
-In this case the ``up`` metric is taken from the Presto query table name. ``21d`` is the duration of the query. The Prometheus ``time`` value
+with a form like: http://localhost:9090/api/v1/query?query=up[21d]&time=1568229904.000.
+In this case the ``up`` metric is taken from the Presto query table name, ``21d`` is the duration of the query. The Prometheus ``time`` value
 corresponds to the ``timestamp`` field. Presto queries are translated from their use of the ``timestamp`` field to a duration and time value
 as needed. Presto splits are generated by dividing the query range into attempted equal chunks.