3.3 explanation

3-Add-simulated-motors.md

@@ -214,6 +214,14 @@ Confirm that motor settings are being saved
 ```
 $ grep motor autosave/built_*.req
 ```
+
+<details>
+<summary>what does grep mean?</summary>
+
+The command `grep motor autosave/built_*.req` searches for the string "motor" within the contents of files that match the pattern **autosave/built_*.req**.
+
+</details>
+
 <details>
 <summary>output</summary>
 
@@ -237,6 +245,8 @@ autosave/built_settings.req:file asyn_motor_settings.req P=kmp:,N=8,M="m8",DTYP=
 ```
 </details>
 
+
+
 ### 3.4 Launch motor screen
 
 Do the following: