style: Fix typos

go-jira/examples/renderedfields/main.go
	Line 51: warning: "Targetting" is a misspelling of "Targeting" (misspell)

go-jira/authentication.go
	Line 169: warning: "authenticaiton" is a misspelling of "authentication" (misspell)

go-jira/issue.go
	Line 802: warning: "specifiying" is a misspelling of "specifying" (misspell)

authentication.go

@@ -166,7 +166,7 @@ func (s *AuthenticationService) Logout() error {
 // JIRA API docs: https://docs.atlassian.com/jira/REST/latest/#auth/1/session
 func (s *AuthenticationService) GetCurrentUserWithContext(ctx context.Context) (*Session, error) {
 	if s == nil {
-		return nil, fmt.Errorf("authenticaiton Service is not instantiated")
+		return nil, fmt.Errorf("authentication Service is not instantiated")
 	}
 	if s.authType != authTypeSession || s.client.session == nil {
 		return nil, fmt.Errorf("no user is authenticated yet")

examples/renderedfields/main.go

@@ -48,7 +48,7 @@ func main() {
 		return
 	}
 
-	fmt.Printf("Targetting %s for issue %s\n", strings.TrimSpace(jiraURL), key)
+	fmt.Printf("Targeting %s for issue %s\n", strings.TrimSpace(jiraURL), key)
 
 	options := &jira.GetQueryOptions{Expand: "renderedFields"}
 	u, _, err := client.Issue.Get(key, options)

issue.go

@@ -799,7 +799,7 @@ func (s *IssueService) Create(issue *Issue) (*Issue, *Response, error) {
 }
 
 // UpdateWithOptionsWithContext updates an issue from a JSON representation,
-// while also specifiying query params. The issue is found by key.
+// while also specifying query params. The issue is found by key.
 //
 // JIRA API docs: https://docs.atlassian.com/jira/REST/cloud/#api/2/issue-editIssue
 func (s *IssueService) UpdateWithOptionsWithContext(ctx context.Context, issue *Issue, opts *UpdateQueryOptions) (*Issue, *Response, error) {