Fix broken images in migrated Wiki docs (#2549)

docs/use/FEL/index.md

@@ -4,13 +4,7 @@ The _FHIR Engine Library_ is a Kotlin library that makes it easy to manage FHIR
 
 Today, there are a growing number of tools and software libraries supporting the use of [FHIR](https://www.hl7.org/fhir/) on various platforms. However, developer support for FHIR on Android is still lacking. Typically, Android healthcare applications still use proprietary data models, and as a result, suffer from a lack of interoperability. The FHIR Engine Library addresses this problem by provding a set of APIs to help manage FHIR resources on Android, allowing easier integration with other software systems using FHIR.
 
-<p align="center">
-[[fhir-engine-components.png|width=640px]]
-</p>
-
-<p align="center">
-Figure 1: FHIR Engine Library components
-</p>
+![FHIR Engine Library components](fhir-engine-components.png)
 
 ## FHIR Engine Library components
 

docs/use/SDCL/FHIR-specification-support.md

@@ -95,7 +95,7 @@ The [`itemControl`](https://build.fhir.org/ig/HL7/fhir-extensions/ValueSet-quest
 | Fly-over | Display | | |
 | Help-Button | Display | [JSON](https://github.com/google/android-fhir/blob/master/catalog/src/main/assets/component_help.json) | | |
 | Auto-complete | Choice | [JSON](https://github.com/google/android-fhir/blob/master/catalog/src/main/assets/component_auto_complete.json) | Filter-forward based on inlined answerOptions | |
-| Drop down | Choice | [JSON](https://github.com/google/android-fhir/blob/master/catalog/src/main/assets/component_dropdown.json) | Default for 4 or more answer options | [<img src="sdc-ref-dropdown.png" height="60">](sdc-ref-dropdown.png) |
+| Drop down | Choice | [JSON](https://github.com/google/android-fhir/blob/master/catalog/src/main/assets/component_dropdown.json) | Default for 4 or more answer options | ![Drop Down](sdc-ref-dropdown.png) |
 | Check-box | Choice | [JSON](https://github.com/google/android-fhir/blob/master/catalog/src/main/assets/component_multi_select_choice.json) | Default for repeat answers | |
 | Radio Button | Choice | [JSON](https://github.com/google/android-fhir/blob/master/catalog/src/main/assets/component_single_choice.json) | Default for less than 4 answer options | |
 | Slider | Integer | [JSON](https://github.com/google/android-fhir/blob/master/catalog/src/main/assets/component_slider.json) | | |