add advice to use background thread in README (#150)

thanks @prempalsingh
scottyab · Jul 27, 2020 · 5fef9f6 · 5fef9f6
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commit 5fef9f6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -54,7 +54,7 @@ if (rootBeer.isRooted()) {
 }
 ```
 
-You can also call each of the checks individually as the sample app does.
+You can also call each of the checks individually as the sample app does. It is advisable to call `isRooted()` from a background thread as it involves disk I/O.
 
 ### False positives