DOCS: correct how set root to current dir

docs/environment.md

@@ -28,7 +28,7 @@ For example, if the root is set to the default value `/sdf/data/lcls/ds/rix/rixx
 
 The output-directory can be set using the `-p <dir_name>` cmdline arg
 
-Setting the var to nothing (_export OUTPUT_ROOT=_ ) will have the library look for an output folder relative to the location of the current script being ran  
+Setting the var to nothing (_export OUTPUT_ROOT=._ ) will have the library look for an output folder relative to the location of the current script being ran  
 
 
 ### Point to Config File
@@ -44,4 +44,4 @@ _(note: if set, the environment variable will always override this cmd-line opti
 
 If neither of the above are set, the suite will try to use a default file named `suiteConfig.py`
 
-If no config file can be found and read, the library will fail-out early
+If no config file can be found and read, the library will fail-out early