Fixed searchmaps map list setup command

It was changed previously because "ls *.bsp" returns error when maps with weird names are present. But being in the "ag" directory and moving the output of "ls maps/*.bsp" to the "allmaps.txt" file, writes all the maps with the "maps/" prefix, which doesn't work as the plugin just takes the whole line removing the ".bsp" and passes it to the agmap command, and "agmap maps/something" doesn't work obviously.

Author: fireblizzard

README.md

@@ -15,7 +15,7 @@ Credits: this is Quaker's ([@skyrim](https://github.com/skyrim)) [plugin](https:
 
 searchmaps provides commands to search through the maps installed on the server, with an optional search term and pagination.  
 For this version to work, you have to create an _allmaps.txt_ file (in _addons/amxmodx/configs_) containing a map per line, with all the maps you want.
-Doing `cd` into your _ag_ folder and executing `ls maps/*.bsp >> addons/amxmodx/configs/allmaps.txt` should be enough for this plugin to work correctly.
+Doing `cd` into your _ag/maps_ folder and executing `ls -- *.bsp >> ../addons/amxmodx/configs/allmaps.txt` should be enough for this plugin to work correctly.
 
 ## speclist