Update wiki.md

Author: pingforhelp

wiki.md

@@ -20,7 +20,7 @@ How to:
 - [How to take admission](https://nios.ac.in/student-information-section/admission-procedure-videos.aspx)
 - [How to make TMA](/wiki/Guidelines)
 - [How to apply for a scribe?](/wiki/howto's-scribe)
-- [How to make practical file/record book]( /wiki/howto-rec-book)
+- [How to make practical file]( /wiki/howto-rec-book)
 - [What to in practical exam](/wiki/pr)
 - [What to in theory exam](/wiki/th)