README: shell syntax highlighting

README.md

@@ -8,57 +8,61 @@ eton is a note-taking cli tool.
 
 ## Examples
 
-    # display the help message
-    eton -h
+```shell
+# display the help message
+eton -h
 
-    # quick add
-    eton new '[ ] do something'
+# quick add
+eton new '[ ] do something'
 
-    # edit the last item
-    eton edit
+# edit the last item
+eton edit
 
-    # add text from STDIN
-    ps aux | eton new -
+# add text from STDIN
+ps aux | eton new -
 
-    # add a file
-    eton addfile file.txt
+# add a file
+eton addfile file.txt
 
-    # a unique alias can be set and used instead of the numeric id
-    eton alias 2 all-processes
+# a unique alias can be set and used instead of the numeric id
+eton alias 2 all-processes
 
-    # the order of id and alias does not matter
-    eton alias all-processes 2
+# the order of id and alias does not matter
+eton alias all-processes 2
 
-    # you can rename an alias
-    eton alias all-processes processes
+# you can rename an alias
+eton alias all-processes processes
 
-    # list all items
-    eton ls -Lall
+# list all items
+eton ls -Lall
 
-    # filter items containing words "thing" AND "some"
-    eton ls thing some
+# filter items containing words "thing" AND "some"
+eton ls thing some
 
-    # you can mark specific items
-    eton mark processes 1
+# you can mark specific items
+eton mark processes 1
 
-    # only list marked items (short mode)
-    eton ls -s
+# only list marked items (short mode)
+eton ls -s
 
-    # open an item in less
-    eton show processes
+# open an item in less
+eton show processes
 
-    # edit items
-    eton edit {1..3} 4 prcs
+# edit items
+eton edit {1..3} 4 prcs
 
-    # alias matching is fuzzy
-    eton cat prcs
+# alias matching is fuzzy
+eton cat prcs
 
-    # pass items to xargs as filenames:
-    eton ls something -l |xargs -i less {}
+# pass items to xargs as filenames:
+eton ls something -l |xargs -i less {}
+```
 
 Notes are stored in ~/.etondb
 
-    echo 'SELECT * FROM attributes LIMIT 10;' |sqlite3 ~/.etondb
+```shell
+echo 'SELECT * FROM attributes LIMIT 10;' |sqlite3 ~/.etondb
+```
 
 Set `$EDITOR` environment variable to edit notes in your prefered editor, e.g., `export EDITOR=vim`.