(Shell|Scripts|Emacs)~minor edits

+psearch function to search pacman with less (I use this all the time,
just makes it easier to do in one go)
~speed script to use a slightly larger file so user can get a better
estimate of dl speed
~ada-mode slightly better comments

Scripts/.local/scripts/speed

@@ -1,2 +1,2 @@
 #!/bin/bash
-wget -nv --show-progress -O /dev/null "https://git.aryadevchavali.com/?p=Text.git;a=blob_plain;f=PDFs/Racket.pdf;hb=HEAD"
+wget -nv --show-progress -O /dev/null "https://git.aryadevchavali.com/?p=Text.git;a=blob_plain;f=PDFs/Algorithms+2011.pdf;hb=HEAD"