fix typo

p_sb_fast_speed_summary minium>minimum

res/values/strings.xml

@@ -243,7 +243,7 @@
 <string name="p_smartbeaconing">SmartBeaconing™</string>
 <string name="p_sb_help">SmartBeaconing™ help</string>
 <string name="p_sb_fast_speed">Fast Speed [km/h]</string>
-<string name="p_sb_fast_speed_summary">Minium speed for fast position updates</string>
+<string name="p_sb_fast_speed_summary">Minimum speed for fast position updates</string>
 <string name="p_sb_fast_rate">Fast Rate [s]</string>
 <string name="p_sb_fast_rate_summary">Beacon rate at fast speed</string>
 <string name="p_sb_slow_speed">Slow Speed [km/h]</string>