chore: ignore yarn.lock in subdirectories

.gitignore

@@ -1,25 +1,26 @@
-node_modules
+.nyc_output
+.vscode
+/coverage
 dist
+docs
+doc
+node_modules
 yarn-error.log
-packages/.old
+**/.npmignore
+!/.npmignore
 **/tsconfig.json
 !/tsconfig.json
 !packages/template/*/tmpl/tsconfig.json
 **/tslint.json
 !/tslint.json
-!packages/template/*/tmpl/tslint.json
-docs
-doc
-.vscode
-**/.npmignore
-!/.npmignore
+**/yarn.lock
+!/yarn.lock
+packages/*/*/index.ts
+packages/.old
 packages/utils/types/index.d.ts
 packages/maker/**/README.md
 packages/publisher/**/README.md
 packages/plugin/**/README.md
 packages/api/cli/README.md
 !packages/**/base/README.md
 !/README.md
-packages/*/*/index.ts
-.nyc_output
-/coverage