[Docs] Touch up documentation templates & porting keyboard docs (#19573)

docs/documentation_templates.md

@@ -36,5 +36,17 @@ Make example for this keyboard (after setting up your build environment):
 
     make planck/rev4:default
 
+Flashing example for this keyboard:
+
+    make planck/rev4:default:flash
+
 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
 ```

docs/porting_your_keyboard_to_qmk.md

@@ -147,7 +147,7 @@ Next is configuring Layout Macro(s). These define the physical arrangement of ke
 In the above example, 
 
 * `LAYOUT_ortho_4x4` defines the name of the layout macro
-  * It must conform to [hardware_keyboard_guidelines.md#ltkeyboard_namehgt]
+  * It must conform to the [layout guidelines](hardware_keyboard_guidelines.md#ltkeyboard_namehgt)
 * `"matrix": [0, 0]` defines the electrical position
 
 ## Additional Configuration
@@ -155,8 +155,7 @@ In the above example,
 There are a lot of features that can be turned on or off, configured or tuned. Some of these have yet to be migrated over to [Data Driven Configuration](data_driven_config.md). The following sections cover the process for when an `info.json` option is unavailable.
 
 ### Configuration Options
-
-For available options for `config.h`, you should see the [Config Options](config_options.md) page for more details.
+For available options for `config.h`, you should see the [Config Options](config_options.md#the-configh-file) page for more details.
 
 ### Build Options