diff --git a/README.md b/README.md
index e84760f..606f630 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,11 @@ Github Changelog Generator
 
 This script automatically generate change-log from your tags and merged pull-requests.
 
-		Usage: github_changelog_generator.rb -u user_name -p project_name [-t 16-digit-GitHubToken] [options]
+## Installation:
+`gem install github_changelog_generator`
+
+## Usage:
+		Usage: github_changelog_generator -u user_name -p project_name [-t 16-digit-GitHubToken] [options]
 		    -u, --user [USER]                your username on GitHub
 		    -p, --project [PROJECT]          name of project on GitHub
 		    -t, --token [TOKEN]              To make more than 50 requests this app required your OAuth token for GitHub. You can generate it on https://github.com/settings/applications
@@ -12,11 +16,23 @@ This script automatically generate change-log from your tags and merged pull-req
 		    -l, --last-changes               generate log between last 2 tags
 		    -f, --date-format [FORMAT]       date format. default is %d/%m/%y 
 
-### Example:
-`github_changelog_generator.rb -u your-username -p your-project [-t 16-digit-GitHub-token-for-more-than-50-requests]`
+### Example usage:
+`github_changelog_generator -u your-username -p your-project [-t 16-digit-GitHub-token-for-more-than-50-requests]`
 
-In output you get `[your_project]_changelog.md` file with automatically generated changelogs.
+In output you will get `[your_project]_changelog.md` file with *pretty Markdown-formatted* changelogs in your current directory.
 
+## Real examples:
+### These changelog was generated by 
+`changelog_generator -u skywinder -p ActionSheetPicker-3.0`:
+[ActionSheetPicker-3.0/CHANGELOG.md](https://github.com/skywinder/ActionSheetPicker-3.0/blob/master/CHANGELOG.md)
+
+## FAQ
+Since GitHub allow to make only 50 requests without authentication it's recommended to run this scrip with key `-t [your 16 digit token]` that you can easily **[generate here](https://github.com/settings/applications)**.
+
+So, if you got error like this:
+>! /Library/Ruby/Gems/2.0.0/gems/github_api-0.12.2/lib/github_api/response/raise_error.rb:14:in `on_complete': GET https://api.github.com/repos/skywinder/ActionSheetPicker-3.0/git/commits/89678f7d7f66873c858e6cb07bf697192aca6768: 403 API rate limit exceeded for 195.88.177.9. (But here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.) (Github::Error::Forbidden) 
+
+Then you have to generate this token or wait for 1 hour
 
 ## License