Tweak letter case of "SQLite" and change article "a" -> "an"

[bocharsky-bw]

Q	A
License	MIT

A few minor tweaks

[bocharsky-bw]

Wow, Symfony Bot rocks :)

[javiereguiluz]

Could a native English speaker please confirm this change? Google says that "a" is more commonly used:

[bocharsky-bw]

When spelling SQL ([ ˈes kjˈuː w̆ˈel ]) with Google translate - it starts with a vowel e, so I'll be surprised if I'm wrong

[bocharsky-bw]

And Ryan uses "an SQL" in KnpU screencasts 😇
https://knpuniversity.com/screencast/php-ep3/sql-injection-prepared-statements

[ogizanagi]

https://sqlite.org/quickstart.html itself uses an SQLite database