fixing some path links

_sidebar.md

@@ -6,7 +6,7 @@
   * [Planning Steps](/docs/background/modeling_steps.md)
   * [TI modes](/docs/background/modes.md)
   * [Electromagnetic Modeling](/docs/background/electromagnetic_modeling.md)
-    * [Head Models](docs/material_methods/anatomical_refs.md)
+    * [Head Models](/docs/material_methods/anatomical_refs.md)
     * [Electrode Shapes and Placement](docs/material_methods/electrode_models.md)
     * [Electromagnetic (EM) Simulator](docs/material_methods/em_sim.md)
     * [Dielectric Tissue Properties](docs/material_methods/dielectric_properties.md)

docs/platform_introduction/dashboard.md

@@ -6,7 +6,7 @@ The **Dashboard** hosts the principal view: ```Studies``` (1.).
   <img width="90%" src="assets/quickguide/dashboard.png">
 </p>
 
-Under ```Studies```, existing Plans (own Plans, or plans that have been shared by other users (6.)) can be accessed (3.) and managed (4.), and new Plans can be [created](docs/plan/create_new_plan.md).
+Under ```Studies```, existing Plans (own Plans, or plans that have been shared by other users (6.)) can be accessed (3.) and managed (4.), and new Plans can be [created](/docs/plan/create_new_plan.md).
 
 In addition, buttons on the top right provide access to notifications, various support material/contact options, and a menu (5.) with the following entries:
 
@@ -19,7 +19,7 @@ In addition, buttons on the top right provide access to notifications, various s
 - _**License**_: Information about the TI Planning Tool license, as well as the licenses of the underlying technologies.
 - _**Log out**_: Logging out from the **TI Planning Tool**
 
-The user access more functionality such as **_Overview_**, [Study Files](docs\platform_introduction\data.md), **Sharing**, and **_Services Updates_** (3.) through the three-dot menu (1.) icon (see the [o<sup>2</sup>S<sup>2</sup>PARC User Manual](https://docs.osparc.io/#/) for information on these functionalities as well as the locking states). 
+The user access more functionality such as **_Overview_**, [Study Files](/docs/platform_introduction/data.md), **Sharing**, and **_Services Updates_** (3.) through the three-dot menu (1.) icon (see the [o<sup>2</sup>S<sup>2</sup>PARC User Manual](https://docs.osparc.io/#/) for information on these functionalities as well as the locking states). 
 If Services within a Plan need updating, the small circular arrow sign will appear in the bottom right corner (2.) of the Plan
 on the **Dashboard**. Clicking this icon will bring you directly to the update menu where you see the current and newest available
 versions of each Service and where you can update them either individually or all together (4.).