chore: Update README.md

Update README.md with database optional dependencies

Chore COG-595

README.md

@@ -32,6 +32,24 @@ pip install cognee
 pip install 'cognee[postgres]'
 ```
 
+### With pip with Weaviate support
+
+```bash
+pip install 'cognee[weaviate]'
+```
+
+### With pip with Qdrant support
+
+```bash
+pip install 'cognee[qdrant]'
+```
+
+### With pip with Neo4j support
+
+```bash
+pip install 'cognee[neo4j]'
+```
+
 ### With poetry
 
 ```bash
@@ -44,6 +62,24 @@ poetry add cognee
 poetry add cognee -E postgres
 ```
 
+### With poetry with Weaviate support
+
+```bash
+poetry add cognee -E weaviate
+```
+
+### With poetry with Qdrant support
+
+```bash
+poetry add cognee -E qdrant
+```
+
+### With poetry with Neo4j support
+
+```bash
+poetry add cognee -E neo4j
+```
+
 
 ## 💻 Basic Usage