Update README.md

Author: litui

README.md

@@ -4,6 +4,6 @@
 
 DTMF (Dual-Tone Multi-Frequency) dialer, Bluebox, and future Redbox.
 
-Now in a release-ready state for both Dialer and Bluebox functionality. Redbox functionality awaits some changes for modulation of pitch.
+Now in a release-ready state for both Dialer and Bluebox functionality. Redbox functionality awaits some changes for modulation.
 
-Please note that using the current tone output method, the 2600 tone is scaled about 33 Hz higher than it should be. This is a limitation of the current sample rate.
+Please note that using the current tone output method, the 2600 tone is scaled about 33 Hz higher than it should be. This is a limitation of the current sample rate.