Update ZMQ Message Reference

ZMQ-Message-Reference.md

@@ -80,7 +80,7 @@ Reply Messages:
 
 Data is a JSON scan request. For example:
 ```
-    msg = ['estimatedTime',   Scan_Request ]
+    msg = ['estimatedTime',   "{'scanType': 'Sample', 'spatialType': 'Image', 'meander': 1, 'tiling': 1, 'yAxisFast': 0, 'lineMode': 'Constant Velocity', 'accelerationDistance': 0.5, 'tileDelay': 0.05, 'lineDelay': 0.05, 'outerRegions': [{'dwellTime': 0.005, 'axes': [{'nPoints': 2, 'trajectories': [{'start': 900.0, 'end': 320.0, 'range': -580.0, 'step': -580.0, 'positionerName': 'Energy'}]}]}], 'innerRegions': [{'axes': [{'nPoints': 1200, 'trajectories': [{'center': 4282.670215322501, 'range': 12.0, 'step': 0.01, 'positionerName': 'FineY'}]}, {'nPoints': 140, 'trajectories': [{'center': 37.8280758446287, 'range': 28.0, 'step': 0.2, 'positionerName': 'FineX'}]}]}, {'axes': [{'nPoints': 10, 'trajectories': [{'center': 5571.33258869908, 'range': 1.0, 'step': 0.1, 'positionerName': 'FineY'}]}, {'nPoints': 10, 'trajectories': [{'center': -5400.94023907363, 'range': 1.0, 'step': 0.1, 'positionerName': 'FineX'}]}]}], 'nOuterRegions': 1, 'nInnerRegions': 1, 'singleOuterRegionValue': 1, 'displayedAxes': {'x': {'region': 'inner', 'index': 1}, 'y': {'region': 'inner', 'index': 0}}, 'positionPrecision': {'precision': 200.0}, 'defocus': {'diameter': 0.0}}" ]
 ```
 
 Reply Messages:
@@ -88,12 +88,45 @@ Reply Messages:
 
 ## 'abortScan'
 
+Message only needs the header, no data required. For example:
+```
+    msg = ['abortScan' ]
+```
+
+Reply Messages:
+- `["status","ok"]`
+
 ## 'pauseScan'
 
+Message only needs the header, no data required. For example:
+```
+    msg = ['pauseScan' ]
+```
+
+Reply Messages:
+- `["status","ok"]`
+
 ## 'resumeScan'
 
+Message only needs the header, no data required. For example:
+```
+    msg = ['resumeScan' ]
+```
+
+Reply Messages:
+- `["status","ok"]`
+
 ## 'scanStatus'
 
+Message only needs the header, no data required. For example:
+```
+    msg = ['scanStatus' ]
+```
+
+Reply Messages:
+- `["status","ok"]`
+- `["scanStatus", JSON_array]`  detailing the current line and pixel, etc.
+
 ## 'moveRequest'
 
 ## 'moveStatus'