Update some links (rust-lang#395)

README.md

@@ -60,9 +60,9 @@ fn main() {
 This project is licensed under either of
 
  * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
-   http://www.apache.org/licenses/LICENSE-2.0)
+   https://www.apache.org/licenses/LICENSE-2.0)
  * MIT license ([LICENSE-MIT](LICENSE-MIT) or
-   http://opensource.org/licenses/MIT)
+   https://opensource.org/licenses/MIT)
 
 at your option.
 

crates/backtrace-sys/Cargo.toml

@@ -4,9 +4,9 @@ version = "0.1.37"
 authors = ["Alex Crichton <[email protected]>"]
 build = "build.rs"
 license = "MIT/Apache-2.0"
-repository = "https://github.com/alexcrichton/backtrace-rs"
-homepage = "https://github.com/alexcrichton/backtrace-rs"
-documentation = "http://alexcrichton.com/backtrace-rs"
+repository = "https://github.com/rust-lang/backtrace-rs"
+homepage = "https://github.com/rust-lang/backtrace-rs"
+documentation = "https://docs.rs/backtrace-sys"
 description = """
 Bindings to the libbacktrace gcc library
 """