Update readme

Author: akaralar

README.md

@@ -1,6 +1,17 @@
 # SafariHistorySearch
-Alfred workflow to Search Safari History written in swift.
+Alfred workflow to search Safari history written in swift.
 
 #Usage
-`shs <SEACH_QUERY>`
-Separate search terms with spaces if you want to search for more than one word, the results shown contain all search terms. This searches the url, page title and page body if available.
+`shs <SEARCH_TERMS>`
+
+Separate search terms with spaces if you want to search for more than one word. ie: 
+
+`shs github safari`
+
+
+Each word is searched separately. If you want to search for a phrase, 
+surround the phrase with double quotes, ie:  
+
+`shs "Alfred Workflow to Search Safari History"` 
+
+The results contain all search terms. This workflow searches the page url, page title and page body if available.