Add missing 'a' before 'safe'

Add an 'a' before the word 'safe' so that the sentences about protecting `privkey.pem` makes sense.
xkr47 · Nov 14, 2015 · b508815 · b508815
1 parent 151c674
commit b508815
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/using.rst b/docs/using.rst
@@ -204,7 +204,7 @@ The following files are available:
 
   .. warning:: This **must be kept secret at all times**! Never share
      it with anyone, including Let's Encrypt developers. You cannot
-     put it into safe, however - your server still needs to access
+     put it into a safe, however - your server still needs to access
      this file in order for SSL/TLS to work.
 
   This is what Apache needs for `SSLCertificateKeyFile