Fix out-of-date remarks and typos in comments

config.sh

@@ -1,9 +1,7 @@
 # 1. Select the best branch, tag or commit hash from https://github.com/apple/llvm-project
 # The recommended approach is to use the tagged release that matches the Swift version
-# returned by the command below (at this time running Xcode Version 11.3.1 (11C504))
+# returned by the command below:
 # $ xcrun -sdk iphoneos swiftc --version
-# Apple Swift version 5.1.3 (swiftlang-1100.0.282.1 clang-1100.0.33.15)
-# Target: x86_64-apple-darwin19.3.0
 
 LLVM_BRANCH="tags/swift-5.3-RELEASE"
 
@@ -12,7 +10,7 @@ LLVM_BRANCH="tags/swift-5.3-RELEASE"
 RUST_BRANCH="tags/1.46.0"
 
 # 3. Select a name for the toolchain you want to install as. The toolchain will be installed
-# under $HOME/.rust-ios-arm64/toolchain-$RUST_TOOLCHAIN
+# under $HOME/.rustup/toolchains/rust-$RUST_TOOLCHAIN
 
 RUST_TOOLCHAIN="ios-arm64-1.46.0"
 

dist.sh

@@ -5,7 +5,7 @@ source config.sh
 # The built toolchain that we are going to package
 WORKING_DIR="$(pwd)/build"
 
-# The directory which will added to the final zip file
+# The directory which will be added to the final zip file
 DEST="$(pwd)/dist/rust-${RUST_TOOLCHAIN}"
 
 # The actual toolchain inside that, which will be installed to ~/.rustup/...