Add readme
diff --git a/cmd/mockServer/README.md b/cmd/mockServer/README.md
new file mode 100644
index 0000000..b88372e
--- /dev/null
+++ b/cmd/mockServer/README.md
@@ -0,0 +1,91 @@
+# apidApigeeSync Mock Server
+
+## Overview
+
+This Mock Server is used during unit tests of apidApigeeSync and has been designed to be run standalone
+for stand-alone development use as well as performance and load testing. 
+
+## Build
+
+From the apidApigeeSync base dir: 
+ 
+    glide install
+
+From apidApigeeSync/cmd/mockServer:
+
+    go build
+    
+You should now have an executable named "mockServer". 
+
+## Execute
+
+Execute with the -h flag to see flags: 
+
+    ./mockServer -h
+    Usage of ./mockServer:
+      -addDevEach duration
+            add a developer each duration [0s]
+      -numDeps int
+            number of deployments in snapshot [2] (default 2)
+      -numDevs int
+            number of developers in snapshot [2] (default 2)
+      -reliable
+            if false, server will often send 500 errors [true] (default true)
+      -upDepEach duration
+            update (replace) a deployment each duration [0s]
+      -upDevEach duration
+            update a developer each duration [0s]
+         
+Note: Nothing is required. 
+
+The following are the values used by default by the Mock Server: 
+
+    ReliableAPI: true
+    ClusterID: "cluster"
+    TokenKey: "key"
+    TokenSecret: "secret"
+    Scope: "scope"
+    Organization: "org"
+    Environment: "test"
+    NumDevelopers: 2
+    AddDeveloperEvery: 0
+    UpdateDeveloperEvery: 0
+    NumDeployments: 2
+    ReplaceDeploymentEvery: 0
+    Port: 9001
+
+## Put it to use
+
+Set your apid configuration to point toward the Mock Server and have correct cluster, key, and secret values. 
+
+For example:
+
+    api_port: 9000
+    api_expvar_path: /expvar
+    events_buffer_size: 5
+    log_level: debug
+    apigeesync_proxy_server_base: http://localhost:9001
+    apigeesync_snapshot_server_base: http://localhost:9001
+    apigeesync_change_server_base: http://localhost:9001
+    apigeesync_consumer_key: key
+    apigeesync_consumer_secret: secret
+    apigeesync_cluster_id: cluster
+    #data_trace_log_level: debug
+    data_source: file:%s?_busy_timeout=20000
+
+Now start apid. It should download the snapshot and changes as you configured for the Mock Server.
+
+Try out a couple of APIs to verify:
+
+    curl -i -d "action=verify&key=1&uriPath=/&scopeuuid=scope" :9000/verifiers/apikey
+    
+    curl -i :9000/deployments
+
+## Notes
+
+Under high loads (eg. a large snapshot), apid may get timeout errors from sqlite. 
+If you see this, you can work around it by increasing the _busy_timeout by adding a config item to your apid config:
+
+    data_source: file:%s?_busy_timeout=10000
+
+The _busy_timeout value is in milliseconds, so the above value is 10s.