Add more docs

Author: prvyk

website/docs/commands/analytics.md

@@ -234,6 +234,16 @@ Array reply: a list of active channels, optionally matching the specified patter
 
 ---
 
+### PUBSUB HELP
+
+```bash
+    PUBSUB HELP
+```
+
+The PUBSUB HELP command returns a helpful text describing the different subcommands.
+
+---
+
 ### PUBSUB NUMPAT
 #### Syntax
 

website/docs/commands/client.md

@@ -56,6 +56,16 @@ Bulk string reply: the name of the client, or an empty string if no name is set.
 
 ---
 
+### CLIENT HELP
+
+```bash
+    CLIENT HELP
+```
+
+The CLIENT HELP command returns a helpful text describing the different subcommands.
+
+---
+
 ### CLIENT SETNAME
 
 #### Syntax

website/docs/commands/scripting-and-functions.md

@@ -69,6 +69,16 @@ Simple string reply: OK.
 
 ---
 
+### SCRIPT HELP
+
+```bash
+    SCRIPT HELP
+```
+
+The SCRIPT HELP command returns a helpful text describing the different subcommands.
+
+---
+
 ### SCRIPT LOAD
 
 #### Syntax

website/docs/commands/server.md

@@ -85,6 +85,16 @@ Array reply: a nested array where each item contains:
 1. The key name
 2. An array of access flag strings that apply to that key
 
+---
+
+### COMMAND HELP
+
+```bash
+    COMMAND HELP
+```
+
+The COMMAND HELP command returns a helpful text describing the different subcommands.
+
 ---
 ### COMMAND INFO
 #### Syntax
@@ -131,6 +141,16 @@ The CONFIG GET command is used to read the configuration parameters of a running
 
 Array reply: a list of configuration parameters matching the provided arguments.
 
+---
+
+### CONFIG HELP
+
+```bash
+    CONFIG HELP
+```
+
+The CONFIG HELP command returns a helpful text describing the different subcommands.
+
 ---
 ### CONFIG SET
 #### Syntax
@@ -277,6 +297,16 @@ SLOWLOG HELP
 
 Returns a list of supported SLOWLOG sub-commands.
 
+---
+
+### MEMORY HELP
+
+```bash
+    MEMORY HELP
+```
+
+The MEMORY HELP command returns a helpful text describing the different subcommands.
+
 ---
 ### MEMORY USAGE
 #### Syntax