update PROJ_DATA steps

Author: jmckenna

en/errors.txt

@@ -265,7 +265,7 @@ There are a few options available if you need to set the `proj.db` location:
 1. Use MapServer's global configuration file, available since the MapServer 8.0
    release, to set the "PROJ_DATA" environment variable.  The default name of
    the config file is `mapserver.conf` (for MS4W users, the file is `/ms4w/ms4w.conf`).
-   Your config file could contain a CONFIG section such as:
+   Your config file could contain an `ENV` section such as:
 
    ::
 
@@ -277,12 +277,11 @@ There are a few options available if you need to set the `proj.db` location:
 
        END #env
 
-    END
-
-2. Set a system variable ("environment variable" on windows) called
-   "PROJ_DATA" and point it to your proj directory.
+     END #config
+    
+   .. seealso:: :ref:`config`     
 
-3. Use the mapfile parameter CONFIG to force the location of the `proj.db`
+2. Use the mapfile parameter CONFIG to force the location of the `proj.db`
    file.  This parameter is specified at the MAP level
 
    .. seealso::
@@ -295,6 +294,9 @@ There are a few options available if you need to set the `proj.db` location:
             CONFIG "PROJ_DATA" "/ms4w/share/proj"
             ...
         END
+        
+3. Set a system variable ("environment variable" on windows) called
+   "PROJ_DATA" and point it to your proj directory.        
 
 4. Set an environment variable through your web server.  Apache has a 
    SetEnv directive that can set environment variables.  Add something

en/mapfile/projection.txt

@@ -157,8 +157,8 @@ shapefile layers or raster layers :
 
     For other layer types, this syntax is invalid.
 
-Specifying which PROJ lookup files to use
------------------------------------------
+Setting the location of the PROJ files
+--------------------------------------
 
 .. index::
    triple: MAP; CONFIG; PROJ_DATA
@@ -173,7 +173,7 @@ or `epsg` file for PROJ <6) :
 1. Use MapServer's global configuration file, available since the MapServer 8.0
    release, to set the "PROJ_DATA" environment variable.  The default name of
    the config file is `mapserver.conf` (for MS4W users, the file is `/ms4w/ms4w.conf`).
-   Your config file could contain a CONFIG section such as:
+   Your config file could contain an `ENV` section such as:
 
    ::
 
@@ -185,9 +185,12 @@ or `epsg` file for PROJ <6) :
 
        END #env
 
-    END   
+     END #config
 
-2. :ref:`MAP` `CONFIG` can be used to specify the location of PROJ files:
+   .. seealso:: :ref:`config`    
+
+2. Set the :ref:`MAP` object's `CONFIG` parameter in your mapfile to specify 
+   the location of PROJ files:
 
    .. code-block:: mapfile
 
@@ -198,8 +201,19 @@ or `epsg` file for PROJ <6) :
         END # PROJECTION
       ...
 
-   It is important that `CONFIG "PROJ_DATA"` line comes before the
+   It is important that the `CONFIG "PROJ_DATA"` line comes before the
    `PROJECTION` block.
+   
+3. Set a system variable ("environment variable" on windows) called
+   "PROJ_DATA" and point it to your proj directory.
+   
+4. Set an environment variable through your web server.  Apache has a 
+   `SetEnv` directive that can set environment variables.  Add something
+   like the following to your Apache *httpd.conf* file:
+   
+   ::
+
+      SetEnv PROJ_DATA "/ms4w/share/proj"
 
 Important Notes
 ---------------