Updated readme with fixes for setting up shared bare repo.

README.md

@@ -118,9 +118,14 @@ for all relevant directories (newly created subdirectories should inherit permis
 In upstream bare repo directories (e.g. `webserver:/usr/local/src/web/example.com/www/`), run:
 ```
 # git init --bare --shared=group
-# git config receive.denyCurrentBranch updateInstead
-# git config receive.denyNonFastForwards false
-# git config core.sharedRepository true			# if needed because of missing init option
+# git config set --local receive.denyCurrentBranch updateInstead
+# git config set --local receive.denyNonFastForwards false
+# git config set --local core.sharedRepository true			# if needed because of missing init option
+```
+
+In order to push to shared repositories under `/usr/local/src/`, set the global git config option:
+```
+$ git config set --global safe.directory "/usr/local/src/*"
 ```
 
 In working copy repos, set upstream and push branches to new bare repos, then in