internal/godoc/codec: fix misspelling of initial
Trust: Julie Qiu
Run-TryBot: Julie Qiu
TryBot-Result: kokoro
@@ -115,7 +115,7 @@ func (d *Decoder) readUint64() uint64 {
// the string "hi" is represented as:
// nBytes 2 'h' 'i'
//
-// Unsigned integers that can't fit into the intial byte are encoded as byte
+// Unsigned integers that can't fit into the initial byte are encoded as byte
// sequences of length 4 or 8, holding little-endian uint32 or uint64 values. We
// use uint32s where possible to save space. We could have saved more space by
// also considering 16-byte numbers, or using a variable-length encoding like
