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/support/src/dispatch.rs

@@ -280,7 +280,7 @@ impl<T> Parameter for T where T: Codec + EncodeLike + Clone + Eq + fmt::Debug +
 ///
 /// The following are reserved function signatures:
 ///
-/// * `deposit_event`: Helper function for depositing an [event](https://docs.substrate.dev/docs/event-enum).
+/// * `deposit_event`: Helper function for depositing an [event](https://docs.substrate.io/v3/runtime/events-and-errors).
 /// The default behavior is to call `deposit_event` from the [System
 /// module](../frame_system/index.html). However, you can write your own implementation for events
 /// in your runtime. To use the default behavior, add `fn deposit_event() = default;` to your

substrate/frame/support/src/storage/bounded_vec.rs

@@ -337,7 +337,7 @@ where
 	fn max_encoded_len() -> usize {
 		// BoundedVec<T, S> encodes like Vec<T> which encodes like [T], which is a compact u32
 		// plus each item in the slice:
-		// https://substrate.dev/rustdocs/v3.0.0/src/parity_scale_codec/codec.rs.html#798-808
+		// https://docs.substrate.io/v3/advanced/scale-codec
 		codec::Compact(S::get())
 			.encoded_size()
 			.saturating_add(Self::bound().saturating_mul(T::max_encoded_len()))

substrate/frame/support/src/storage/weak_bounded_vec.rs

@@ -307,7 +307,7 @@ where
 	fn max_encoded_len() -> usize {
 		// WeakBoundedVec<T, S> encodes like Vec<T> which encodes like [T], which is a compact u32
 		// plus each item in the slice:
-		// https://substrate.dev/rustdocs/v3.0.0/src/parity_scale_codec/codec.rs.html#798-808
+		// https://docs.substrate.io/v3/advanced/scale-codec
 		codec::Compact(S::get())
 			.encoded_size()
 			.saturating_add(Self::bound().saturating_mul(T::max_encoded_len()))

substrate/frame/support/src/traits/misc.rs

@@ -429,7 +429,7 @@ impl<T: MaxEncodedLen> MaxEncodedLen for WrapperOpaque<T> {
 	fn max_encoded_len() -> usize {
 		let t_max_len = T::max_encoded_len();
 
-		// See scale encoding https://substrate.dev/docs/en/knowledgebase/advanced/codec
+		// See scale encoding https://docs.substrate.io/v3/advanced/scale-codec
 		if t_max_len < 64 {
 			t_max_len + 1
 		} else if t_max_len < 2usize.pow(14) {