fix mistakes from build

see https://gitlab.com/niccokunzmann/fdroiddata/-/jobs/358350041#L132
- remove . at end of description
- spaces before categories
- remove spaces at end of line
- remove line

metadata/com.github.niccokunzmann.hanumanchalisa.yml

@@ -0,0 +1,22 @@
+Categories:
+  - Multimedia
+  - Reading
+License: GPL-3.0-only
+SourceCode: https://github.com/niccokunzmann/HanumanChalisa
+IssueTracker: https://github.com/niccokunzmann/HanumanChalisa/issues
+
+RepoType: git
+Repo: https://github.com/niccokunzmann/HanumanChalisa.git
+
+Builds:
+  - versionName: '1.6'
+    versionCode: 6
+    commit: v1.6
+    subdir: app
+    gradle:
+      - yes
+
+AutoUpdateMode: Version v%v
+UpdateCheckMode: Tags
+CurrentVersion: '1.6'
+CurrentVersionCode: 6