Merge pull request #120 from CodaFi/readme-and-weep

Copyedit the README

Author: CodaFi

README.md

@@ -13,9 +13,9 @@ The root unit of organization of an LLVM IR program is a `Module`
 let module = Module(name: "main")
 ```
 
-LLVM IR is construction is done with an `IRBuilder` object.  An `IRBuilder` is a cursor pointed inside a context, and as such has ways of extending that context and moving around inside of it.
+LLVM IR construction is handled by `IRBuilder` objects.  An `IRBuilder` is a cursor pointed inside a context, and as such has ways of extending that context and moving around inside of it.
 
-Defining a simple function and moving the cursor to a point where we can begin inserting instructions is done like so:
+Defining a function and moving the cursor to a point where we can begin inserting instructions is done like so:
 
 ```swift
 let builder = IRBuilder(module: module)
@@ -183,10 +183,10 @@ print(fn(false)) // 0.0112359550561798...
 
 ## Installation
 
-There are a couple, annoying steps you need to get it working before it'll
-build.
+There are a couple annoying steps you need to accomplish before building
+LLVMSwift:
 
-- Install LLVM 4.0 using your favorite package manager. For example:
+- Install LLVM 5.0+ using your favorite package manager. For example:
   - `brew install llvm`
 - Ensure `llvm-config` is in your `PATH`
   - That will reside in the `/bin` folder wherever your package manager
@@ -197,6 +197,12 @@ build.
 Once you do that, you can add LLVMSwift as a dependency for your own Swift
 compiler projects!
 
+### Installation with Swift Package Manager
+
+```swift
+.package(url: "https://github.com/llvm-swift/LLVMSwift.git", from: "0.2.0")
+```
+
 ### Installation without Swift Package Manager
 
 We really recommend using SwiftPM with LLVMSwift, but if your project is
@@ -223,3 +229,4 @@ all its code generation.
 
 This project is released under the MIT license, a copy of which is available
 in this repo.
+