Fix typos (#129)

- typo fixes

src/bcc-documents/reference_guide_en.md

@@ -439,7 +439,7 @@ This instruments the `security_bpf` hook and causes it to return `-EPERM`.
 Changing `return -EPERM` to `return 0` would cause the BPF program
 to allow the operation instead.
 
-LSM probes require at least a 5.7+ kernel with the following configuation options set:
+LSM probes require at least a 5.7+ kernel with the following configuration options set:
 - `CONFIG_BPF_LSM=y`
 - `CONFIG_LSM` comma separated string must contain "bpf" (for example,
   `CONFIG_LSM="lockdown,yama,bpf"`)
@@ -829,7 +829,7 @@ Syntax: ```void* ringbuf_reserve(u64 data_size)```
 
 Return: Pointer to data struct on success, NULL on failure
 
-A method of the BPF_RINGBUF_OUTPUT table, for reserving space in the ring buffer and simultaenously
+A method of the BPF_RINGBUF_OUTPUT table, for reserving space in the ring buffer and simultaneously
 allocating a data struct for output. Must be used with one of ```ringbuf_submit``` or ```ringbuf_discard```.
 
 Examples in situ: <!-- TODO -->

src/bcc-documents/special_filtering_en.md

@@ -1,6 +1,6 @@
 # Special Filtering
 
-Some tools have special filtering capabitilies, the main use case is to trace
+Some tools have special filtering capabilities, the main use case is to trace
 processes running in containers, but those mechanisms are generic and could
 be used in other cases as well.