Some minor documentation improvements

- Start making the summary lines for modules a little better. Just say
   what the module does, rather than "The X API does Y" or "Provides Y".
   There's still a lot of work to be done here.

 - Bundle prism.js on the page, so we can highlight non-Lua code.

 - Copy our local_ips wiki page to the main docs.

doc/guides/local_ips.md

@@ -0,0 +1,95 @@
+---
+module: [kind=guide] local_ips
+---
+
+# Allowing access to local IPS
+By default, ComputerCraft blocks access to local IP addresses for security. This means you can't normally access any
+HTTP server running on your computer. However, this may be useful for testing programs without having a remote
+server. You can unblock these IPs in the ComputerCraft config.
+
+## Minecraft 1.13 and later, CC:T 1.87.0 and later {#cc-1.87.0}
+The configuration file can be located at `serverconfig/computercraft-server.toml` inside the world folder on either
+single-player or multiplayer. Look for lines that look like this:
+
+```toml
+#A list of rules which control behaviour of the "http" API for specific domains or IPs.
+#Each rule is an item with a 'host' to match against, and a series of properties. The host may be a domain name ("pastebin.com"),
+#wildcard ("*.pastebin.com") or CIDR notation ("127.0.0.0/8"). If no rules, the domain is blocked.
+[[http.rules]]
+    host = "$private"
+    action = "deny"
+```
+
+On 1.95.0 and later, this will be a single entry with `host = "$private"`. On earlier versions, this will be a number of
+`[[http.rules]]` with various IP addresses. You will want to remove all of the `[[http.rules]]` entires that have
+`action = "deny"`. Then save the file and relaunch Minecraft (Server).
+
+Here's what it should look like after removing:
+
+```toml
+#A list of rules which control behaviour of the "http" API for specific domains or IPs.
+#Each rule is an item with a 'host' to match against, and a series of properties. The host may be a domain name ("pastebin.com"),
+#wildcard ("*.pastebin.com") or CIDR notation ("127.0.0.0/8"). If no rules, the domain is blocked.
+[[http.rules]]
+    #The maximum size (in bytes) that a computer can send or receive in one websocket packet.
+    max_websocket_message = 131072
+    host = "*"
+    #The maximum size (in bytes) that a computer can upload in a single request. This includes headers and POST text.
+    max_upload = 4194304
+    action = "allow"
+    #The maximum size (in bytes) that a computer can download in a single request. Note that responses may receive more data than allowed, but this data will not be returned to the client.
+    max_download = 16777216
+    #The period of time (in milliseconds) to wait before a HTTP request times out. Set to 0 for unlimited.
+    timeout = 30000
+```
+
+## Minecraft 1.13 and later, CC:T 1.86.2 and earlier {#cc-1.86.2}
+The configuration file for singleplayer is at `.minecraft/config/computercraft-common.toml`. Look for lines that look
+like this:
+
+```toml
+#A list of wildcards for domains or IP ranges that cannot be accessed through the "http" API on Computers.
+#If this is empty then all whitelisted domains will be accessible. Example: "*.github.com" will block access to all subdomains of github.com.
+#You can use domain names ("pastebin.com"), wilcards ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
+blacklist = ["127.0.0.0/8", "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16", "fd00::/8"]
+```
+
+Remove everything inside the array, leaving the last line as `blacklist = []`. Then save the file and relaunch Minecraft.
+
+Here's what it should look like after removing:
+
+```toml
+#A list of wildcards for domains or IP ranges that cannot be accessed through the "http" API on Computers.
+#If this is empty then all whitelisted domains will be accessible. Example: "*.github.com" will block access to all subdomains of github.com.
+#You can use domain names ("pastebin.com"), wilcards ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
+blacklist = []
+```
+
+## Minecraft 1.12.2 and earlier {#mc-1.12}
+On singleplayer, the configuration file is located at `.minecraft\config\ComputerCraft.cfg`. On multiplayer, the
+configuration file is located at `<server folder>\config\ComputerCraft.cfg`. Look for lines that look like this:
+
+```ini
+# A list of wildcards for domains or IP ranges that cannot be accessed through the "http" API on Computers.
+# If this is empty then all explicitly allowed domains will be accessible. Example: "*.github.com" will block access to all subdomains of github.com.
+# You can use domain names ("pastebin.com"), wildcards ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
+S:blocked_domains <
+    127.0.0.0/8
+    10.0.0.0/8
+    172.16.0.0/12
+    192.168.0.0/16
+    fd00::/8
+ >
+```
+
+Delete everything between the `<>`, leaving the last line as `S:blocked_domains = <>`. Then save the file and relaunch
+Minecraft (Server).
+
+Here's what it should look like after removing:
+
+```ini
+# A list of wildcards for domains or IP ranges that cannot be accessed through the "http" API on Computers.
+# If this is empty then all explicitly allowed domains will be accessible. Example: "*.github.com" will block access to all subdomains of github.com.
+# You can use domain names ("pastebin.com"), wildcards ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
+S:blocked_domains <>
+```