pages*: update outdated pages (#11821)

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: Isaac Vicente <isaacvicentsocial@gmail.com>

pages.ne/common/alias.md

@@ -10,7 +10,7 @@
 
 - एउटा सामान्य उपनाम बनाउनुहोस्:
 
-`alias  {{शब्द}}="{{आदेश}}"`
+`alias {{शब्द}}="{{आदेश}}"`
 
 - एउटा आदेशसङ्ग सम्बन्धित उपनाम हेर्नुहोस्: