small fixes for README text

README.md

@@ -45,7 +45,7 @@ above. These objects should have _discrete statuses_ which are sets of predefine
 ### Prometheus
 
 To work with data from Prometheus you will need to setup discrete statuses of your objects.
-Here are requirements to store these statuses in metrics:
+Requirements to store these statuses in metrics are as follows:
 * metrics should have two values: `0` and `1`;
 * there should be a label with status' value.
 
@@ -55,49 +55,48 @@ When it's done, you can collect all the data via query, e.g.:
 (max_over_time(coffee_maker_status{status="<STATUS_VALUE>"}[$__interval]) == 1) * <STATUS_VALUE>
 ```
 
-If there was no such status (`<STATUS_VALUE>`) during query's interval, Prometheus will
+If there was no such status (`<STATUS_VALUE>`) during query's interval, Prometheus would
 return nothing. Otherwise, status' value will be returned.
 
-For example, if you have 5 statuses and metric has possible values (0,1,2,3,4) then it
+For example, if you have 5 statuses and a metric (`coffee_maker_status`) with 5 allowed
-should be transformed into previous form with this rule:
+values (`0`, `1`, `2`, `3`, `4`), you should transform this metric using the following rule:
 
 ```
 - record: coffee_maker_status:discrete
   expr: |
     count_values("status", coffee_maker_status)
-
 ```
 
-This rule will transform `coffee_maker_status` metric with value `3` into new metric:
+That's how `coffee_maker_status` metric with value `3` will be transformed into new metric:
 
 ```
 coffee_maker_status:discrete{status="3"} 1
 ```
 
-Now, Prometheus has `0` and `1` values for each status as required. These metrics can be aggregated,
+Now, when Prometheus has `0` and `1` values for each status, all these metrics can be
-so you will get all available statuses over time.
+aggregated, so you will get all available statuses of your objects over time.
 
 ### Panel
 
-First of all, each possible status value corresponds to a separate query. Each query should have
+First of all, an individual query for each possible status' value should be created.
-similar legend for grouping:
+Each query should also have similar legend for grouping:
 
 ![Query setup](https://raw.githubusercontent.com/flant/grafana-statusmap/master/src/img/queries-example.png)
 
-Then, color mapping for status values should be defined in __Discrete__ color mode:
+Then, color mapping for status' values should be defined in __Discrete__ color mode:
 
 ![Color mapping](https://raw.githubusercontent.com/flant/grafana-statusmap/master/src/img/color-mapping.png)
 
-Note: __Spectrum__ and __Opacity__ color modes function the same way they do in [Heatmap](https://grafana.com/plugins/heatmap) plugin.
+_Note: __Spectrum__ and __Opacity__ color modes function the same way they do in [Heatmap](https://grafana.com/plugins/heatmap) plugin._
 
 
 ### More options
 
 ![Bucket options](https://raw.githubusercontent.com/flant/grafana-statusmap/master/src/img/options-bucket.png)
 
-__Multiple values__ checkbox determine multiple values display mode:
+__Multiple values__ checkbox specifies how they should be displayed:
 * If it's off, multiple values for one bucket are treated as error;
-* If it's on, color for bucket would be determined by the value having least index in color mapping.
+* If it's on, color for such bucket would be determined by the value having least index in color mapping.
 
 ![Color mapping](https://raw.githubusercontent.com/flant/grafana-statusmap/master/src/img/multiple-values-error.png)
 
@@ -114,7 +113,7 @@ __Rounding__ may be used to round edges.
 ## Development
 
 To test and improve the plugin you can run Grafana instance in Docker using following command (in
-the directory containing the plugin):
+the directory containing Statusmap plugin):
 
 ```
 docker run --rm -it -v $PWD:/var/lib/grafana/plugins/flant-statusmap-panel \
@@ -132,9 +131,9 @@ grunt watch
 
 ## Acknowledgements
 
-The first public release of this plugin has been fully prepared by [Flant](https://flant.com/) engineers. Idea comes from Dmitry Stolyarov ([@distol](https://github.com/distol)), initial version is written by Sergey Gnuskov ([@gsmetal](https://github.com/gsmetal)) and final changes are made by Ivan Mikheykin ([@diafour](https://github.com/diafour)).
+The first public release of this plugin has been fully made by [Flant](https://flant.com/) engineers. The whole idea has come from Dmitry Stolyarov ([@distol](https://github.com/distol)), initial version has been written by Sergey Gnuskov ([@gsmetal](https://github.com/gsmetal)) and final changes has been made by Ivan Mikheykin ([@diafour](https://github.com/diafour)).
 
-This plugin is based on "Heatmap" panel by Grafana and inspired by ideas from Carpet plot, Discrete panel, Status Panel, Status Dot, Status By Group.
+This plugin is based on "Heatmap" panel by Grafana and partly inspired by ideas from Carpet plot, Discrete panel, Status Panel, Status Dot, Status By Group.
 
 #### Changelog