Updated baseline README

Issue #4 

Summary
---
* Updated `Why do we need another 'memory profiler'?` section
* Updated `What should I do with these results?` section
* Added links to other memory profilers that may be helpful

Specs
---
```
Finished in 1.44 seconds
35 examples, 0 failures
```

Documentation
---
```
Files:           9
Modules:         3 (    0 undocumented)
Classes:         5 (    0 undocumented)
Constants:       7 (    0 undocumented)
Methods:        18 (    0 undocumented)
 100.00% documented
```