doc/adapter-api: Fix working of Discoverable filter
diff --git a/doc/adapter-api.txt b/doc/adapter-api.txt
index 4791af2..2afd61b 100644
--- a/doc/adapter-api.txt
+++ b/doc/adapter-api.txt
@@ -116,8 +116,8 @@
 			bool Discoverable (Default: false)
 
 				Make adapter discoverable while discovering,
-				if the adapter is already discoverable this
-				setting this filter won't do anything.
+				if the adapter is already discoverable setting
+				this filter won't do anything.
 
 			When discovery filter is set, Device objects will be
 			created as new devices with matching criteria are