Fix full spellcheck (#1076)

* fix(spellcheck): test of fixing

* fix(hunspell): improved many typos etc.

* fix(hunspell): all errors solved

* fix(hunspell): extended scope of files - the build should fail

* Return error code.

* Fix spelling, sort dictionary.

* fix(hunspell): added fix to gitlabs check

* fix(typo): one typo and test of verification on github

* fix(typo): one typo

Co-authored-by: Tomasz Drwięga <tomasz@parity.io>

bridges/relays/headers/src/sync.rs

@@ -35,7 +35,7 @@ pub struct HeadersSyncParams {
 	/// Maximal total headers size in single submit request.
 	pub max_headers_size_in_single_submit: usize,
 	/// We only may store and accept (from Ethereum node) headers that have
-	/// number >= than best_substrate_header.number - prune_depth.
+	/// number >= than "best_substrate_header.number" - "prune_depth".
 	pub prune_depth: u32,
 	/// Target transactions mode.
 	pub target_tx_mode: TargetTransactionMode,
@@ -58,9 +58,9 @@ pub enum TargetTransactionMode {
 pub struct HeadersSync<P: HeadersSyncPipeline> {
 	/// Synchronization parameters.
 	params: HeadersSyncParams,
-	/// Best header number known to source node.
+	/// The best header number known to source node.
 	source_best_number: Option<P::Number>,
-	/// Best header known to target node.
+	/// The best header known to target node.
 	target_best_header: Option<HeaderIdOf<P>>,
 	/// Headers queue.
 	headers: QueuedHeaders<P>,
@@ -85,7 +85,7 @@ impl<P: HeadersSyncPipeline> HeadersSync<P> {
 		self.source_best_number
 	}
 
-	/// Best header known to target node.
+	/// The best header known to target node.
 	pub fn target_best_header(&self) -> Option<HeaderIdOf<P>> {
 		self.target_best_header
 	}
@@ -150,7 +150,7 @@ impl<P: HeadersSyncPipeline> HeadersSync<P> {
 		Some(best_downloaded_number + One::one())
 	}
 
-	/// Selech orphan header to downoload.
+	/// Selech orphan header to download.
 	pub fn select_orphan_header_to_download(&self) -> Option<&QueuedHeader<P>> {
 		let orphan_header = self.headers.header(HeaderStatus::Orphan)?;