Translate :clj-kondo config expressed in Leiningen project maps

[vemv]

Closes #8

The feature can be tested out like so:

diff --git a/project.clj b/project.clj
index 8a50fb1..a1fa9cb 100644
--- a/project.clj
+++ b/project.clj
@@ -6,6 +6,7 @@
   :eval-in-leiningen true
   :pedantic? :warn
   :dependencies [[clj-kondo/clj-kondo "2022.06.22"]]
+  :clj-kondo {:config {:linters {:docstring-leading-trailing-whitespace {:level :warning}}}}
   :deploy-repositories [["clojars" {:url "https://clojars.org/repo"
                                     :username :env/clojars_username
                                     :password :env/clojars_password
diff --git a/src/leiningen/clj_kondo.clj b/src/leiningen/clj_kondo.clj
index a97e353..344c1f8 100644
--- a/src/leiningen/clj_kondo.clj
+++ b/src/leiningen/clj_kondo.clj
@@ -23,7 +23,10 @@
     (when-not (zero? exit-status)
       (lein-core/exit exit-status))))
 
-(defn parse-additional [project options]
+(defn parse-additional
+  "Hello
+  "
+  [project options]
   (mapv (fn [option]
           (if (= "$classpath" option)
             (lein-classpath/get-classpath-string project)

$ lein clj-kondo
/Users/vemv/lein-clj-kondo/src/leiningen/clj_kondo.clj:27:3: warning: Docstring should not have leading or trailing whitespace.
linting took 99ms, errors: 0, warnings: 1

Cheers - V

[borkdude]

I expect that you'd like a new release, right?

[vemv]

Correct, thanks!

[borkdude]

0.2.1 released

[borkdude]

@vemv Would you be so kind to make a PR with updated changelogs? I forgot to ask this in this PR.