Migrate to docs.substrate.io throughout (#10007)

* all reverences of substrate.dev replaced with *correct* docs.substrate.io links

* fix links in non-cargo files, errors in replace

* homepage https://substrate.io

* cargo +nightly fmt

* FMT

Co-authored-by: Bastian Köcher <info@kchr.de>

substrate/frame/example/src/benchmarking.rs

@@ -26,13 +26,13 @@ use frame_system::RawOrigin;
 // To actually run this benchmark on pallet-example, we need to put this pallet into the
 //   runtime and compile it with `runtime-benchmarks` feature. The detail procedures are
 //   documented at:
-//   https://substrate.dev/docs/en/knowledgebase/runtime/benchmarking#how-to-benchmark
+//   https://docs.substrate.io/v3/runtime/benchmarking#how-to-benchmark
 //
 // The auto-generated weight estimate of this pallet is copied over to the `weights.rs` file.
 // The exact command of how the estimate generated is printed at the top of the file.
 
 // Details on using the benchmarks macro can be seen at:
-//   https://substrate.dev/rustdocs/v3.0.0/frame_benchmarking/macro.benchmarks.html
+//   https://paritytech.github.io/substrate/master/frame_benchmarking/trait.Benchmarking.html#tymethod.benchmarks
 benchmarks! {
 	// This will measure the execution time of `set_dummy` for b in [1..1000] range.
 	set_dummy_benchmark {

substrate/frame/example/src/lib.rs

@@ -316,8 +316,7 @@ const MILLICENTS: u32 = 1_000_000_000;
 // - assigns a dispatch class `operational` if the argument of the call is more than 1000.
 //
 // More information can be read at:
-//   - https://substrate.dev/docs/en/knowledgebase/learn-substrate/weight
-//   - https://substrate.dev/docs/en/knowledgebase/runtime/fees#default-weight-annotations
+//   - https://docs.substrate.io/v3/runtime/weights-and-fees
 //
 // Manually configuring weight is an advanced operation and what you really need may well be
 //   fulfilled by running the benchmarking toolchain. Refer to `benchmarking.rs` file.
@@ -548,7 +547,8 @@ pub mod pallet {
 
 			// Print out log or debug message in the console via log::{error, warn, info, debug,
 			// trace}, accepting format strings similar to `println!`.
-			// https://substrate.dev/rustdocs/v3.0.0/log/index.html
+			// https://paritytech.github.io/substrate/master/sp_io/logging/fn.log.html
+			// https://paritytech.github.io/substrate/master/frame_support/constant.LOG_TARGET.html
 			info!("New value is now: {:?}", new_value);
 
 			// Put the new value into storage.