diff --git a/.travis.yml b/.travis.yml
index ba2a75e..bde02f7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,8 +13,6 @@ before_install:
 script:
   - |-
     gox \
-      -os="linux darwin windows" \
-      -arch="amd64" \
       -output="build/{{.Dir}}_${TRAVIS_TAG}_{{.OS}}_{{.Arch}}" \
       -ldflags " \
         -X github.com/prometheus/common/version.Revision=${TRAVIS_COMMIT} \
diff --git a/readme.md b/readme.md
index ead75a5..b4b3708 100644
--- a/readme.md
+++ b/readme.md
@@ -1,9 +1,10 @@
 # Smsc balance exporter
 
-The smsc balance exporter allows exporting balance for [smsc gateway](https://smsc.ru)
+The smsc balance exporter for [prometheus](https://prometheus.io) allows exporting balance for [smsc gateway](https://smsc.ru)
 
 ## How it works
-Exporter querying balance every hour (by default) and save it value in memory
+Exporter querying balance every hour (by default) and store it value in memory.
+When prometheus make request, exporter retrieve balance value from memory for make response.
 
 ## Configuration
 You must set environment variables:
@@ -14,7 +15,7 @@ You must set environment variables:
 ## Command-line flags
 
 * `listen-address` - The address to listen on for HTTP requests. (Default: `0.0.0.0:9601`)
-* `interval` - The address to listen on for HTTP requests. (Default: `0.0.0.0:9601`)
+* `interval` - Interval (in seconds) for querying balance. (Default: `0.0.0.0:9601`)
 
 ## Running with systemctl