Update Spelling List (#828)

* Add `refcount` and `postfix` as real words

Also sorts the spellcheck dictionary for your viewing pleasure

* Fix a couple of typos

* Nightly RustFmt

Sorry, I have it set to stable by default

.config/cargo_spellcheck.dic

 80
 
-WebAssembly
-Wasm
-Wasm32
-validator
-ERC
-fuzzer
-SHA
-BLAKE2
-KECCAK
 ABI
+AST
+BLAKE2
+DApp
+ERC
 FFI
+Gnosis
+KECCAK
+Polkadot
+RPC
+SHA
 UI
-crypto
-deploy
-layed
-dispatchable
-encodable
-decodable
+Wasm
+Wasm32
+WebAssembly
+adjunctive
+bitvector
+bitwise
 callee
-prefilled
-defrag
-defragmentation
-growable
 codegen
+const
+crypto
+cryptographic
 deallocate
 deallocation
-getter
-bitvector
+decodable
+defrag
+defragmentation
+deploy
 dereferencing
-recurse
-kB
-scalability
-scalable
-adjunctive
-invariants
 deserializes
-DApp
-RPC
-AST
-untyped
-variadic
+dispatchable
+encodable
 evaluable
+fuzzer
+getter
+growable
+interoperate
+invariants
+kB
+layed
 multisig
-Gnosis
+postfix
+prefilled
+recurse
+scalability
+scalable
 stdin
 stdout
-interoperate
-cryptographic
-Polkadot
-bitwise
+untyped
+validator
+variadic
 
+NFT/S
+accessor/S
+allocator/S
+backend/S
+blockchain/S
+defragment/SD
+encoding/S
+endian/P
+enum/S
 hasher/S
 hashmap/S
-vector/S
-vec/S
-enum/S
-struct/S
 instantiation/S
-allocator/S
-defragment/SD
 layout/JG
-endian/P
-accessor/S
-NFT/S
-encoding/S
-blockchain/S
-backend/S
 namespace/S
 runtime/S
+struct/S
+vec/S
+vector/S

crates/lang/ir/src/ir/contract.rs

@@ -102,7 +102,7 @@ impl Contract {
     ///            types.
     /// - `storage-alloc`: If `true` enables the dynamic storage allocator
     ///                    facilities and code generation of the ink! smart
-    ///                    contract. Does incure some overhead. The default is
+    ///                    contract. Does incur some overhead. The default is
     ///                    `true`.
     /// - `as-dependency`: If `true` compiles this ink! smart contract always as
     ///                    if it was a dependency of another smart contract.

crates/lang/ir/src/ir/utils.rs

@@ -16,7 +16,7 @@ use crate::format_err;
 use proc_macro2::Span;
 use syn::spanned::Spanned as _;
 
-/// Ensures that the given visibility is `pub` and anotherwise returns an appropriate error.
+/// Ensures that the given visibility is `pub` and otherwise returns an appropriate error.
 ///
 /// # Note
 ///