fix typo in path to file, COMMIT_EDITMSG

Author: Rajiv Bose

@commitlint/cli/cli.js

@@ -40,7 +40,7 @@ const configuration = {
 	description: {
 		color: 'toggle colored output',
 		cwd: 'directory to execute in',
-		edit: 'read last commit message found in ./git/COMMIT_EDITMSG',
+		edit: 'read last commit message found in ./.git/COMMIT_EDITMSG',
 		extends: 'array of shareable configurations to extend',
 		from: 'lower end of the commit range to lint; applies if edit=false',
 		to: 'upper end of the commit range to lint; applies if edit=false',

docs/reference-cli.md

@@ -14,7 +14,7 @@ npm install --save-dev @commitlint/cli
 
   [input] reads from stdin if --edit, --from, --to are omitted
   --color, -c          toggle formatted output, defaults to: true
-  --edit, -e           read last commit message found in ./git/COMMIT_EDITMSG
+  --edit, -e           read last commit message found in ./.git/COMMIT_EDITMSG
   --extends, -x        array of resolvable ids pointing to shareable configurations to extend
   --from, -f           lower end of the commit range to lint; applies if edit=false
   --to, -t             upper end of the commit range to lint; applies if edit=false