papis: Differentiate between emgs and academia

Moved my old study library to the more descriptive emgs library
to differentiate from newly added studies under the academia
library.
Both can still be accessed through the main library.

writing/.config/papis/config

@@ -1,6 +1,6 @@
 [settings]
 #opentool = zathura
-#picktool = fzf
+picktool = papis-tui
 default-library = master
 file-browser = vifm
 ref-format = {doc[author_list][0][family]}{doc[year]}
@@ -28,6 +28,9 @@ editmore = vi
 [master]
 dir = ~/documents/library
 
+[emgs]
+dir = ~/documents/library/emgs
+
 [academia]
 dir = ~/documents/library/academia