Added reuse information (#782)

Signed-off-by: Philip Molares <philip.molares@udo.edu>

src/components/markdown-renderer/utils/button-inside.scss

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 .button-inside {
   margin-top: -31px;
 }

src/components/markdown-renderer/utils/calculate-line-marker-positions.ts

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import equal from 'fast-deep-equal'
 import { RefObject, useCallback, useEffect, useRef } from 'react'
 import useResizeObserver from 'use-resize-observer'

src/components/markdown-renderer/utils/html-react-transformer.tsx

@@ -1,10 +1,13 @@
+/*
+SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+
+SPDX-License-Identifier: AGPL-3.0-only
+*/
+
 import { DomElement } from 'domhandler'
 import React, { ReactElement, Suspense } from 'react'
 import { convertNodeToElement, Transform } from 'react-html-parser'
-import {
-  ComponentReplacer,
-  SubNodeTransform
-} from '../replace-components/ComponentReplacer'
+import { ComponentReplacer, SubNodeTransform } from '../replace-components/ComponentReplacer'
 import { LineKeys } from '../types'
 
 export interface TextDifferenceResult {

src/components/markdown-renderer/utils/line-number-mapping.ts

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { diffArrays } from 'diff'
 import { TextDifferenceResult } from './html-react-transformer'
 import { LineKeys } from '../types'