Merge pull request #5 from quarklang/typo-fix

typo fix and add in missing word
change camel case variable names to underscore variable names
Merge pull request #8 from quarklang/underscore

change camel case variable names to underscore variable names
Update proposal.md
Add code samples
Minor fixes
More detailed explanation on Syntax/Quantum Register section. Clarify how to do measurements
Break a long line of comment into 3 lines
Add 'Function definition section and Lambda section
Add else-statement to 'If' section
Merge pull request #9 from quarklang/code_sample

Code sample