Update coordinates_index.js

src/programs/basics/coordinates_index.js

@@ -6,7 +6,8 @@
 */
 
 // Global variables have scope in the whole module.
-const pattern = '| |▁|▂|▃|▄|▅|▆|▇|▆|▅|▄|▃|▂|▁'
+const pattern = '| |.|,|:|;|x|K|Ñ|R|a|+|=|-|_'
+// const pattern = '| |▁|▂|▃|▄|▅|▆|▇|▆|▅|▄|▃|▂|▁'
 
 // Resize the browser window to modify the pattern.
 export function main(coord, context, cursor, buffer) {