Fleshed out README

README.md

@@ -3,9 +3,58 @@ Highlight
 
 [VERSION: 0.1]
 
+Demo
+----
+
+![Higlight Registry Example](assets/demo.png)
+
+Overview
+--------
+
 Builds a custom registry for manipulating highlights. In particular, I found it
 necessary to search for different keywords without overriding previous searches;
 that is, I wanted to be able to continue adding more words to a search without
 having to keep track of which words I've already searched for.
 
-Refer to ```doc/``` for instructions on use.
+Refer to ```doc/``` for complete instructions on use.
+
+Installation
+------------
+
+I prefer using [vim-plug](https://github.com/junegunn/vim-plug) for plugin
+management as follows:
+
+```vim
+Plug 'jrpotter/vim-highlight'
+```
+
+Follow use according to plugin manager you use or optionally, copy
+plugin/highlight.vim from this repo into $VIM_DIR/plugin.
+
+Usage
+-----
+
+Put your cursor over a given word and press ```&``` to append the ```<cword>```
+under the cursor into the ```"``` register by default. Navigating from this
+highlighted word to other occurrences are then done by ```n``` and ```N``` to
+move forward and backward respectively. To append another ```<cword>``` into
+the register, move other another cursor and press ```&```. Now pressing ```n```
+or ```N``` will navigate to occurrences of both words.
+
+To clear out this register, just press ```c&```. If you want to keep these words
+highlighted but begin another search, you can use another register. By default,
+the search is replaced by said register. So, if after using the default register
+you place your cursor over another ```<cword>``` and press ```"1&```, you'll
+begin another search and navigate accordingly. To switch back to the original
+register, press ```y&```.
+
+To remove a selected word, press ```d&```. Note each ```[c|d|y]&``` can be
+prepended with a register as well.
+
+Overloading of ```*```, ```#```, ```g*```, and ```g#``` is also done.
+
+Lastly, the numeral registers are highlighted different colors but by default
+none of the other registers are. Instead, they are initialized with the
+```g:highlight_register_default_color``` variable, which starts with value
+```Yellow```.
+