client config README small fixes

Tiny typo plus addition of URI RFC reference and formatting.

src/core/client_config/README.md

@@ -24,7 +24,7 @@ Load Balancing
 Load balancing configuration is provided by a grpc_lb_policy object, stored as
 part of grpc_client_config.
 
-A load balancing policies primary job is to pick a target server given only the
+A load balancing policy primary job is to pick a target server given only the
 initial metadata for a request. It does this by providing a grpc_subchannel
 object to the owning channel.
 
@@ -39,15 +39,16 @@ decisions (for example, by avoiding disconnected backends).
 
 Configured sub-channels are fully setup to participate in the grpc data plane.
 Their behavior is specified by a set of grpc channel filters defined at their
-construction. To customize this behavior, resolvers build grpc_subchannel_factory 
+construction. To customize this behavior, resolvers build
-objects, which use the decorator pattern to customize construction arguments for 
+grpc_subchannel_factory objects, which use the decorator pattern to customize
-concrete grpc_subchannel instances.
+construction arguments for concrete grpc_subchannel instances.
 
 
 Naming for GRPC
 ===============
 
-Names in GRPC are represented by a URI.
+Names in GRPC are represented by a URI (as defined in
+[RFC 3986](https://tools.ietf.org/html/rfc3986)).
 
 The following schemes are currently supported:
 
@@ -56,5 +57,6 @@ dns:///host:port - dns schemes are currently supported so long as authority is
                    release)
 
 unix:path        - the unix scheme is used to create and connect to unix domain
-                   sockets - the authority must be empty, and the path represents
+                   sockets - the authority must be empty, and the path
-                   the absolute or relative path to the desired socket
+                   represents the absolute or relative path to the desired
+                   socket