Update README.md

README.md

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 # sp-hydra-veil
 
 The `sp-hydra-veil` meta repository connects client revisions to explicit versions of subcomponents.
+
+## Build Instructions
+
+### Presumptions
+
+* The correct versions of all direct, and indirect, dependencies were built and submitted to Simplified Privacy's package registry.
+
+### Prerequisites
+
+* Ensure `docker` (version `29.3.0` or higher) is installed on your system.
+* Mark the desired direct dependency versions inside the `requirements.txt` file.
+* Assign a version number to your `AppImage` build inside the `VERSION` file.
+
+### Build Steps
+
+* From within the project's root directory, run:
+
+```bash
+docker compose up --force-recreate
+```
+
+* Once the `AppImage` has been successfully built, run:
+
+```bash
+sed -z -i 's/Hydra_Veil/hydra-veil/g' dist/Hydra_Veil-x86_64.AppImage.zsync
+rename -d 's/^Hydra_Veil/hydra-veil/' dist/Hydra_Veil*
+```