Add Usage

README.md

@@ -1 +1,38 @@
 # promql_java_client
+# Usage
+## Make API URL
+### RangeQuery
+```
+RangeQueryBuilder rangeQueryBuilder =  QueryBuilderType.RangeQuery.newInstance(TARGET_SERVER);
+URI targetUri = rangeQueryBuilder.withQuery("irate(received_api_call_total[60s])")
+		                 .withStartEpochTime(System.currentTimeMillis() / 1000 - 60*10)
+		                 .withEndEpochTime(System.currentTimeMillis() / 1000)
+		                 .withStepTime("60s")
+		                 .build();
+``` 
+### InstantQuery
+```
+	InstantQueryBuilder iqb = QueryBuilderType.InstantQuery.newInstance(TARGET_SERVER);
+	URI targetUri = iqb.withQuery("irate(received_api_call_total[60s])").build();
+``` 
+### LabelQuery
+```
+	LabelMetaQueryBuilder lmqb = QueryBuilderType.LabelMetadaQuery.newInstance(TARGET_SERVER);
+	URI targetUri = lmqb.withLabel("pod").build();
+``` 
+### Statuc(Config)Query
+```
+	StatusMetaQueryBuilder smqb = QueryBuilderType.StatusMetadaQuery.newInstance(TARGET_SERVER);
+	URI targetUri = smqb.build();
+``` 
+### TargetQuery
+```
+	TargetMetaQueryBuilder tmqb = QueryBuilderType.TargetMetadaQuery.newInstance(TARGET_SERVER);
+	URI targetUri = tmqb.build();
+``` 
+### AlertManagerQuery
+```
+	AlertManagerMetaQueryBuilder ammqb = QueryBuilderType.AlertManagerMetadaQuery.newInstance(TARGET_SERVER);
+	URI targetUri = ammqb.build();
+``` 
+