Readme - minor fixes

README.md

@@ -2,24 +2,23 @@
 If you are new to ISQ and need access to it, please read the following guide.
 
 ### How to operate the machine
-I've made a video. Its not perfect, but most of the things are covered. Bottlenecks of this video-guide are listed below. Once stable operation procedure will be developed fixed video will be recorded.
+I've made a video. Its not perfect, but most of the things are covered. Bottlenecks of this video-guide are listed below. Once stable operation procedure will be developed, fixed video will be recorded.
 
 #### Video (youtube)
 [![IMAGE ALT TEXT](http://img.youtube.com/vi/M8Ol5ormuOg/0.jpg)](http://www.youtube.com/watch?v=M8Ol5ormuOg "ISQ operation guide")
 
 #### Notes (FAQ)
- * PAY SPECIAL ATTENTION !! DO NOT SET BLANK AS TYPE:BLANK, keep the type as UNKNOWN.
- * Sample tray is not fully visible in the video, check the photo inset.
+ * PAY SPECIAL ATTENTION !! DO NOT SET BLANK AS TYPE:BLANK, keep the type as UNKNOWN (as shown in the video).
+ * Sample tray is dispayed in the video in the photo inset.
  * Sample tray can be moved by hand when not injecting.
  * Mass-range is predefined to full operational range
  * keep attention to setting proper method - correct solvent and correct mode (positive/negative)
  * Stay away of pollutants!!
 
 ### How to gain access
-Once MS tutors will be set the procedure should be easy.
  * Contact your MS tutor.
  * Watch the video.
- * Measure few samples with the MS tutor.
+ * Measure few times with the MS tutor.
  * Request MS tutor to write me (Jan) and I will grant you access for the booking system.
 
 ### Booking system
@@ -27,7 +26,7 @@ Once MS tutors will be set the procedure should be easy.
 
 ### Known Pollutants
  * polar aprotic solvents (DMF, DMSO, HMPA..)
- * buffers (TEAB ..), concentrated ionic/easily ionizable compounds (TEA, DIPEA..)
+ * buffers (TEAB ..) and concentrated ionic/easily ionizable compounds (TEA, DIPEA..)
  * electrolytes (TBAF, TBAPF6, ...)
  * molecular sieves, microcrystalline compounds
  * low-grade solvents