Readme updates

Author: Nate Fisher

Readme.md

@@ -1,32 +1,34 @@
 # smlr
-Truncates stdin to a maximum fixed size, abbreviating the output if over the specified length.
+Truncates `stdin` to a maximum fixed size, abbreviating the output if over the specified length. For example, make a giant git branch name more manageable for use in `PS1`.
 
 #### Usage
 `[source] | smlr [-s SIZE] [-a ALIGNMENT]`
 * `-s`: Size of output. If equal or greater than input, input is relayed to s unchanged"). Default value is 5.
-* `-a`: Alignment of output. Can be either `left` or `right`. Default value is middle.
+* `-a`: Alignment of output. Can be either middle (if option is omitted), `left` or `right`. Default is middle alignment.
 
 #### Examples
-Bring your git branch down to a fixed-size
+Bring your git branch down to a fixed-size:
 ```
 > git rev-parse --abbrev-ref HEAD | smlr -s 10
 > feat...-13
 ```
-Deal with too many letters
+Deal with too many letters. Sometimes there are too many:
 ```
 > echo "abcdefghijkl" | smlr -s 10 -a right
 > ...fghijkl
+> echo "abcdefghijkl" | smlr -s 10 -a left
+> abcdefg...
 ```
-A date string that's just too long
+A date string that's just too long:
 ```
 > date | smlr -s 10
 > Thu ...017
 ```
-Repeat the string if it turns out to be equal, or smaller than, the size given
+Repeat the string if it turns out to be equal, or smaller than, the size given:
 ```
 > echo "abc" | smlr -s 5
 > abc
 ```
 
 #### Installation
-Just run a `make` to build it. If everything works out, you'll have a binary in `build/rel/smlr`. Symlink or copy that sucker to a path directory, such as `/usr/bin`.
+Clone the repo and run a `make` to build it. If everything works out, you'll have a binary in `build/rel/smlr`. Symlink or copy that sucker to a path directory, such as `/usr/bin`.