Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/Documentation/input/walkera0701.txt b/Documentation/input/walkera0701.txt
index 8f4289e..561385d 100644
--- a/Documentation/input/walkera0701.txt
+++ b/Documentation/input/walkera0701.txt
@@ -77,7 +77,7 @@
 
 24 bin+oct values + 1 bin value = 24*4+1 bits  = 97 bits
 
-(Warning, pulses on ACK ar inverted by transistor, irq is rised up on sync
+(Warning, pulses on ACK are inverted by transistor, irq is raised up on sync
 to bin change or octal value to bin change).
 
 Binary data representations: