docs: edit run terminology

Author: jbogarthyde

packages/angular/cli/commands/run-long.md

@@ -4,5 +4,4 @@ Each named target has a default configuration, specified by an "options" object,
 For example, the "build" target for a newly generated app has a predefined alternate configuration named "production". 
 
 You can define new targets and their configuration options in the "architect" section of the `angular.json` file.
-If you do so, you can run them from the command line using the `ng run` command.
-
+If you do so, you can run them from the command line using the `ng run` command.

packages/angular/cli/commands/run.json

@@ -1,8 +1,8 @@
 {
   "$schema": "http://json-schema.org/schema",
   "$id": "ng-cli://commands/run.json",
-  "description": "Runs an architect target with a custom build configuration defined in your project.",
-  "$longDescription": "",
+  "description": "Runs an architect target with a custom builder configuration defined in your project.",
+  "$longDescription": "./run-long.md",
 
   "$aliases": [],
   "$scope": "in",
@@ -15,14 +15,14 @@
       "properties": {
         "target": {
           "type": "string",
-          "description": "The command to run.",
+          "description": "The target to run.",
           "$default": {
             "$source": "argv",
             "index": 0
           }
         },
         "configuration": {
-          "description": "A named build configuration, defined in the \"configurations\" section of angular.json.\nThe build uses the configuration associated with the given target.",
+          "description": "A named builder configuration, defined in the \"configurations\" section of angular.json.\nThe builder uses the named configuration to run the given target.",
           "type": "string",
           "aliases": [ "c" ]
         }