Merge pull request #1083 from palmtenor/fixdoc

Fix some documentation mistakes

docs/reference_guide.md

@@ -28,7 +28,7 @@ This guide is incomplete. If something feels missing, check the bcc and kernel s
     - [Maps](#maps)
         - [1. BPF_TABLE](#1-bpf_table)
         - [2. BPF_HASH](#2-bpf_hash)
-        - [3. BPF_ARRAY](#2-bpf_array)
+        - [3. BPF_ARRAY](#3-bpf_array)
         - [4. BPF_HISTOGRAM](#4-bpf_histogram)
         - [5. BPF_STACK_TRACE](#5-bpf_stack_trace)
         - [6. BPF_PERF_ARRAY](#6-bpf_perf_array)

docs/tutorial_bcc_python_developer.md

@@ -669,7 +669,7 @@ struct key_t {
   u32 curr_pid;
 };
 // map_type, key_type, leaf_type, table_name, num_entry
-BPF_HASH(struct key_t, u64, stats, 1024);
+BPF_HASH(stats, struct key_t, u64, 1024);
 // attach to finish_task_switch in kernel/sched/core.c, which has the following
 // prototype:
 //   struct rq *finish_task_switch(struct task_struct *prev)