extras: add training map

Author: Velaron

3rdparty/cs16client-extras/gfx/shell/btns_main.bmp

@@ -1,15 +1,15 @@
 189	" "
-190	" "
-191	" "
-192	" "
+190	"Learn how to play Counter-Strike, be prepared for the real battles."
+191	"Load to a saved place in the training mission."
+192	"Save your place in the training mission, or load a past save."
 193	"Change Counter-Strike's video, audio, and control settings."
 194	"Read Half-Life's readme.txt."
 196	"Quit Counter-Strike."
 198	"Get online and play Counter-Strike with others from around the world."
-323	"Disable graphic visuals. If this is turned on Counter-Strike will not be playable."
-324	"Download the latest version of Half-Life."
+323	"Disable graphic visuals. If this is turned on, Counter-Strike will not be playable."
+324	"Download the latest version of Half-Life: Counter-Strike."
 398	"If the server allows it, this option will help you aim at enemies."
-391	"Check this box and enter password to disable visuals inappropriate for younger players and multiplayer.  Anyone wishing to change this setting will need to use this password. IMPORTANT NOTE:  If this is turned on Counter-Strike will not be playable."
+391	"Check this box and enter password to disable visuals inappropriate for younger players and multiplayer.  Anyone wishing to change this setting will need to use this password. IMPORTANT NOTE:  If this is turned on, Counter-Strike will not be playable."
 400	"Read the official Counter-Strike Manual, learn how to play."
 402	"cstrike\manual\manual.htm"
 416	"Visit Counter-Strike.net"